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Finding the Fourth Proportional to 554,785.20, 831,691.80 and 376,714.80

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Solution

The fourth proportional to 554,785.20, 831,691.80 and 376,714.80 is: 564,742.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,785.20 : 831,691.80 = 376,714.80 : x
  2. Step 2: Convert to fraction form
    554,785.20/831,691.80 = 376,714.80/x
  3. Step 3: Cross multiply
    554,785.20x = 831,691.80 × 376,714.80
  4. Step 4: Simplify right side
    554,785.20x = 313,310,610,098.64
  5. Step 5: Solve for x
    x = 313,310,610,098.64/554,785.20
  6. Step 6: Final answer
    x = 564,742.19

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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.