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Finding the Fourth Proportional to 437,628.10, 656,442.15 and 437,628.10

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Solution

The fourth proportional to 437,628.10, 656,442.15 and 437,628.10 is: 656,442.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,628.10 : 656,442.15 = 437,628.10 : x
  2. Step 2: Convert to fraction form
    437,628.10/656,442.15 = 437,628.10/x
  3. Step 3: Cross multiply
    437,628.10x = 656,442.15 × 437,628.10
  4. Step 4: Simplify right side
    437,628.10x = 287,277,530,864.42
  5. Step 5: Solve for x
    x = 287,277,530,864.42/437,628.10
  6. Step 6: Final answer
    x = 656,442.15

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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.