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Finding the Fourth Proportional to 553,354.20, 829,375.20 and 496,929.60

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Solution

The fourth proportional to 553,354.20, 829,375.20 and 496,929.60 is: 744,805.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,354.20 : 829,375.20 = 496,929.60 : x
  2. Step 2: Convert to fraction form
    553,354.20/829,375.20 = 496,929.60/x
  3. Step 3: Cross multiply
    553,354.20x = 829,375.20 × 496,929.60
  4. Step 4: Simplify right side
    553,354.20x = 412,141,086,385.92
  5. Step 5: Solve for x
    x = 412,141,086,385.92/553,354.20
  6. Step 6: Final answer
    x = 744,805.20

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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.