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Finding the Fourth Proportional to 416,401.40, 625,016.82 and 229,500.92

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Solution

The fourth proportional to 416,401.40, 625,016.82 and 229,500.92 is: 344,479.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,401.40 : 625,016.82 = 229,500.92 : x
  2. Step 2: Convert to fraction form
    416,401.40/625,016.82 = 229,500.92/x
  3. Step 3: Cross multiply
    416,401.40x = 625,016.82 × 229,500.92
  4. Step 4: Simplify right side
    416,401.40x = 143,441,935,205.47
  5. Step 5: Solve for x
    x = 143,441,935,205.47/416,401.40
  6. Step 6: Final answer
    x = 344,479.95

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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.