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Finding the Fourth Proportional to 359,403.24, 539,101.62 and 137,787.24

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Solution

The fourth proportional to 359,403.24, 539,101.62 and 137,787.24 is: 206,679.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,403.24 : 539,101.62 = 137,787.24 : x
  2. Step 2: Convert to fraction form
    359,403.24/539,101.62 = 137,787.24/x
  3. Step 3: Cross multiply
    359,403.24x = 539,101.62 × 137,787.24
  4. Step 4: Simplify right side
    359,403.24x = 74,281,324,299.33
  5. Step 5: Solve for x
    x = 74,281,324,299.33/359,403.24
  6. Step 6: Final answer
    x = 206,679.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.