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Finding the Fourth Proportional to 539,949.71, 745,066.67 and 298,217.90

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Solution

The fourth proportional to 539,949.71, 745,066.67 and 298,217.90 is: 411,505.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,949.71 : 745,066.67 = 298,217.90 : x
  2. Step 2: Convert to fraction form
    539,949.71/745,066.67 = 298,217.90/x
  3. Step 3: Cross multiply
    539,949.71x = 745,066.67 × 298,217.90
  4. Step 4: Simplify right side
    539,949.71x = 222,192,212,470.97
  5. Step 5: Solve for x
    x = 222,192,212,470.97/539,949.71
  6. Step 6: Final answer
    x = 411,505.39

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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.