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Finding the Fourth Proportional to 359,251.20, 539,314.20 and 181,666.80

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Solution

The fourth proportional to 359,251.20, 539,314.20 and 181,666.80 is: 272,721.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,251.20 : 539,314.20 = 181,666.80 : x
  2. Step 2: Convert to fraction form
    359,251.20/539,314.20 = 181,666.80/x
  3. Step 3: Cross multiply
    359,251.20x = 539,314.20 × 181,666.80
  4. Step 4: Simplify right side
    359,251.20x = 97,975,484,908.56
  5. Step 5: Solve for x
    x = 97,975,484,908.56/359,251.20
  6. Step 6: Final answer
    x = 272,721.39

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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.