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Finding the Fourth Proportional to 359,396,061.60, 539,094,092.40 and 345,287,287.20

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Solution

The fourth proportional to 359,396,061.60, 539,094,092.40 and 345,287,287.20 is: 517,930,930.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,396,061.60 : 539,094,092.40 = 345,287,287.20 : x
  2. Step 2: Convert to fraction form
    359,396,061.60/539,094,092.40 = 345,287,287.20/x
  3. Step 3: Cross multiply
    359,396,061.60x = 539,094,092.40 × 345,287,287.20
  4. Step 4: Simplify right side
    359,396,061.60x = 186,142,336,710,342,112
  5. Step 5: Solve for x
    x = 186,142,336,710,342,112/359,396,061.60
  6. Step 6: Final answer
    x = 517,930,930.80

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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.