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Finding the Fourth Proportional to 625,460.56, 863,132.16 and 338,977.60

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Solution

The fourth proportional to 625,460.56, 863,132.16 and 338,977.60 is: 467,787.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,460.56 : 863,132.16 = 338,977.60 : x
  2. Step 2: Convert to fraction form
    625,460.56/863,132.16 = 338,977.60/x
  3. Step 3: Cross multiply
    625,460.56x = 863,132.16 × 338,977.60
  4. Step 4: Simplify right side
    625,460.56x = 292,582,468,079.62
  5. Step 5: Solve for x
    x = 292,582,468,079.62/625,460.56
  6. Step 6: Final answer
    x = 467,787.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.