Home / 893,641,979.76-1,233,237,281.28-491,801,994.72

Finding the Fourth Proportional to 893,641,979.76, 1,233,237,281.28 and 491,801,994.72

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Solution

The fourth proportional to 893,641,979.76, 1,233,237,281.28 and 491,801,994.72 is: 678,692,998.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,641,979.76 : 1,233,237,281.28 = 491,801,994.72 : x
  2. Step 2: Convert to fraction form
    893,641,979.76/1,233,237,281.28 = 491,801,994.72/x
  3. Step 3: Cross multiply
    893,641,979.76x = 1,233,237,281.28 × 491,801,994.72
  4. Step 4: Simplify right side
    893,641,979.76x = 606,508,554,896,573,696
  5. Step 5: Solve for x
    x = 606,508,554,896,573,696/893,641,979.76
  6. Step 6: Final answer
    x = 678,692,998.58

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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.