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Finding the Fourth Proportional to 610,862.52, 915,358.56 and 255,683.16

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Solution

The fourth proportional to 610,862.52, 915,358.56 and 255,683.16 is: 383,133.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,862.52 : 915,358.56 = 255,683.16 : x
  2. Step 2: Convert to fraction form
    610,862.52/915,358.56 = 255,683.16/x
  3. Step 3: Cross multiply
    610,862.52x = 915,358.56 × 255,683.16
  4. Step 4: Simplify right side
    610,862.52x = 234,041,769,153.85
  5. Step 5: Solve for x
    x = 234,041,769,153.85/610,862.52
  6. Step 6: Final answer
    x = 383,133.29

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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.