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Finding the Fourth Proportional to 359,589.20, 539,383.80 and 247,614.80

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Solution

The fourth proportional to 359,589.20, 539,383.80 and 247,614.80 is: 371,422.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,589.20 : 539,383.80 = 247,614.80 : x
  2. Step 2: Convert to fraction form
    359,589.20/539,383.80 = 247,614.80/x
  3. Step 3: Cross multiply
    359,589.20x = 539,383.80 × 247,614.80
  4. Step 4: Simplify right side
    359,589.20x = 133,559,411,760.24
  5. Step 5: Solve for x
    x = 133,559,411,760.24/359,589.20
  6. Step 6: Final answer
    x = 371,422.20

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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.