Home / 869,017,365.74-1,199,098,578.06-511,856,255.40

Finding the Fourth Proportional to 869,017,365.74, 1,199,098,578.06 and 511,856,255.40

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Solution

The fourth proportional to 869,017,365.74, 1,199,098,578.06 and 511,856,255.40 is: 706,275,998.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,017,365.74 : 1,199,098,578.06 = 511,856,255.40 : x
  2. Step 2: Convert to fraction form
    869,017,365.74/1,199,098,578.06 = 511,856,255.40/x
  3. Step 3: Cross multiply
    869,017,365.74x = 1,199,098,578.06 × 511,856,255.40
  4. Step 4: Simplify right side
    869,017,365.74x = 613,766,108,021,256,192
  5. Step 5: Solve for x
    x = 613,766,108,021,256,192/869,017,365.74
  6. Step 6: Final answer
    x = 706,275,998.87

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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.