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Finding the Fourth Proportional to 652,783.92, 977,251.32 and 636,687.60

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Solution

The fourth proportional to 652,783.92, 977,251.32 and 636,687.60 is: 953,154.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,783.92 : 977,251.32 = 636,687.60 : x
  2. Step 2: Convert to fraction form
    652,783.92/977,251.32 = 636,687.60/x
  3. Step 3: Cross multiply
    652,783.92x = 977,251.32 × 636,687.60
  4. Step 4: Simplify right side
    652,783.92x = 622,203,797,527.63
  5. Step 5: Solve for x
    x = 622,203,797,527.63/652,783.92
  6. Step 6: Final answer
    x = 953,154.30

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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.