Home / 645,497,580,654.41-890,786,999,464.65-352,526,514,243.39

Finding the Fourth Proportional to 645,497,580,654.41, 890,786,999,464.65 and 352,526,514,243.39

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Solution

The fourth proportional to 645,497,580,654.41, 890,786,999,464.65 and 352,526,514,243.39 is: 486,486,774,336.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,497,580,654.41 : 890,786,999,464.65 = 352,526,514,243.39 : x
  2. Step 2: Convert to fraction form
    645,497,580,654.41/890,786,999,464.65 = 352,526,514,243.39/x
  3. Step 3: Cross multiply
    645,497,580,654.41x = 890,786,999,464.65 × 352,526,514,243.39
  4. Step 4: Simplify right side
    645,497,580,654.41x = 314,026,035,854,601,594,339,328
  5. Step 5: Solve for x
    x = 314,026,035,854,601,594,339,328/645,497,580,654.41
  6. Step 6: Final answer
    x = 486,486,774,336.54

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Find fourth proportional to 1,290,995,161,308.82, 1,781,573,998,929.30 and 705,053,028,486.78
Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.