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Finding the Fourth Proportional to 359,743.20, 539,614.80 and 301,131.60

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Solution

The fourth proportional to 359,743.20, 539,614.80 and 301,131.60 is: 451,697.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,743.20 : 539,614.80 = 301,131.60 : x
  2. Step 2: Convert to fraction form
    359,743.20/539,614.80 = 301,131.60/x
  3. Step 3: Cross multiply
    359,743.20x = 539,614.80 × 301,131.60
  4. Step 4: Simplify right side
    359,743.20x = 162,495,068,107.68
  5. Step 5: Solve for x
    x = 162,495,068,107.68/359,743.20
  6. Step 6: Final answer
    x = 451,697.40

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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.