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Finding the Fourth Proportional to 359,344.60, 539,276.10 and 201,405.40

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Solution

The fourth proportional to 359,344.60, 539,276.10 and 201,405.40 is: 302,253.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,344.60 : 539,276.10 = 201,405.40 : x
  2. Step 2: Convert to fraction form
    359,344.60/539,276.10 = 201,405.40/x
  3. Step 3: Cross multiply
    359,344.60x = 539,276.10 × 201,405.40
  4. Step 4: Simplify right side
    359,344.60x = 108,613,118,630.94
  5. Step 5: Solve for x
    x = 108,613,118,630.94/359,344.60
  6. Step 6: Final answer
    x = 302,253.38

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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.