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Finding the Fourth Proportional to 1,766,252.72, 2,648,741.88 and 755,446.16

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Solution

The fourth proportional to 1,766,252.72, 2,648,741.88 and 755,446.16 is: 1,132,896.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,766,252.72 : 2,648,741.88 = 755,446.16 : x
  2. Step 2: Convert to fraction form
    1,766,252.72/2,648,741.88 = 755,446.16/x
  3. Step 3: Cross multiply
    1,766,252.72x = 2,648,741.88 × 755,446.16
  4. Step 4: Simplify right side
    1,766,252.72x = 2,000,981,882,077.18
  5. Step 5: Solve for x
    x = 2,000,981,882,077.18/1,766,252.72
  6. Step 6: Final answer
    x = 1,132,896.70

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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.