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Finding the Fourth Proportional to 466,831.80, 699,326.10 and 279,286.20

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Solution

The fourth proportional to 466,831.80, 699,326.10 and 279,286.20 is: 418,377.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,831.80 : 699,326.10 = 279,286.20 : x
  2. Step 2: Convert to fraction form
    466,831.80/699,326.10 = 279,286.20/x
  3. Step 3: Cross multiply
    466,831.80x = 699,326.10 × 279,286.20
  4. Step 4: Simplify right side
    466,831.80x = 195,312,129,029.82
  5. Step 5: Solve for x
    x = 195,312,129,029.82/466,831.80
  6. Step 6: Final answer
    x = 418,377.94

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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.