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Finding the Fourth Proportional to 508,404.90, 701,307.27 and 317,086.14

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Solution

The fourth proportional to 508,404.90, 701,307.27 and 317,086.14 is: 437,397.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,404.90 : 701,307.27 = 317,086.14 : x
  2. Step 2: Convert to fraction form
    508,404.90/701,307.27 = 317,086.14/x
  3. Step 3: Cross multiply
    508,404.90x = 701,307.27 × 317,086.14
  4. Step 4: Simplify right side
    508,404.90x = 222,374,815,198.24
  5. Step 5: Solve for x
    x = 222,374,815,198.24/508,404.90
  6. Step 6: Final answer
    x = 437,397.07

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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.