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Finding the Fourth Proportional to 616,686.62, 925,187.27 and 256,737.87

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Solution

The fourth proportional to 616,686.62, 925,187.27 and 256,737.87 is: 385,172.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,686.62 : 925,187.27 = 256,737.87 : x
  2. Step 2: Convert to fraction form
    616,686.62/925,187.27 = 256,737.87/x
  3. Step 3: Cross multiply
    616,686.62x = 925,187.27 × 256,737.87
  4. Step 4: Simplify right side
    616,686.62x = 237,530,607,767.23
  5. Step 5: Solve for x
    x = 237,530,607,767.23/616,686.62
  6. Step 6: Final answer
    x = 385,172.31

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1.5x scale

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.