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Finding the Fourth Proportional to 437,671.40, 656,507.10 and 367,687.40

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Solution

The fourth proportional to 437,671.40, 656,507.10 and 367,687.40 is: 551,531.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,671.40 : 656,507.10 = 367,687.40 : x
  2. Step 2: Convert to fraction form
    437,671.40/656,507.10 = 367,687.40/x
  3. Step 3: Cross multiply
    437,671.40x = 656,507.10 × 367,687.40
  4. Step 4: Simplify right side
    437,671.40x = 241,389,388,680.54
  5. Step 5: Solve for x
    x = 241,389,388,680.54/437,671.40
  6. Step 6: Final answer
    x = 551,531.10

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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.