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Finding the Fourth Proportional to 417,212.10, 625,818.15 and 227,599.20

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Solution

The fourth proportional to 417,212.10, 625,818.15 and 227,599.20 is: 341,398.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,212.10 : 625,818.15 = 227,599.20 : x
  2. Step 2: Convert to fraction form
    417,212.10/625,818.15 = 227,599.20/x
  3. Step 3: Cross multiply
    417,212.10x = 625,818.15 × 227,599.20
  4. Step 4: Simplify right side
    417,212.10x = 142,435,710,285.48
  5. Step 5: Solve for x
    x = 142,435,710,285.48/417,212.10
  6. Step 6: Final answer
    x = 341,398.80

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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.