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Finding the Fourth Proportional to 616,435.20, 924,069.60 and 363,909.60

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Solution

The fourth proportional to 616,435.20, 924,069.60 and 363,909.60 is: 545,520.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,435.20 : 924,069.60 = 363,909.60 : x
  2. Step 2: Convert to fraction form
    616,435.20/924,069.60 = 363,909.60/x
  3. Step 3: Cross multiply
    616,435.20x = 924,069.60 × 363,909.60
  4. Step 4: Simplify right side
    616,435.20x = 336,277,798,508.16
  5. Step 5: Solve for x
    x = 336,277,798,508.16/616,435.20
  6. Step 6: Final answer
    x = 545,520.11

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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.