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Finding the Fourth Proportional to 1,161,693.60, 1,737,874.80 and 1,005,655.20

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Solution

The fourth proportional to 1,161,693.60, 1,737,874.80 and 1,005,655.20 is: 1,504,443.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,161,693.60 : 1,737,874.80 = 1,005,655.20 : x
  2. Step 2: Convert to fraction form
    1,161,693.60/1,737,874.80 = 1,005,655.20/x
  3. Step 3: Cross multiply
    1,161,693.60x = 1,737,874.80 × 1,005,655.20
  4. Step 4: Simplify right side
    1,161,693.60x = 1,747,702,829,568.96
  5. Step 5: Solve for x
    x = 1,747,702,829,568.96/1,161,693.60
  6. Step 6: Final answer
    x = 1,504,443.88

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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.