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Finding the Fourth Proportional to 996,691.40, 1,495,037.10 and 365,523.20

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Solution

The fourth proportional to 996,691.40, 1,495,037.10 and 365,523.20 is: 548,284.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,691.40 : 1,495,037.10 = 365,523.20 : x
  2. Step 2: Convert to fraction form
    996,691.40/1,495,037.10 = 365,523.20/x
  3. Step 3: Cross multiply
    996,691.40x = 1,495,037.10 × 365,523.20
  4. Step 4: Simplify right side
    996,691.40x = 546,470,744,910.72
  5. Step 5: Solve for x
    x = 546,470,744,910.72/996,691.40
  6. Step 6: Final answer
    x = 548,284.80

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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.