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Finding the Fourth Proportional to 466,639.20, 699,958.80 and 458,863.20

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Solution

The fourth proportional to 466,639.20, 699,958.80 and 458,863.20 is: 688,294.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,639.20 : 699,958.80 = 458,863.20 : x
  2. Step 2: Convert to fraction form
    466,639.20/699,958.80 = 458,863.20/x
  3. Step 3: Cross multiply
    466,639.20x = 699,958.80 × 458,863.20
  4. Step 4: Simplify right side
    466,639.20x = 321,185,334,836.16
  5. Step 5: Solve for x
    x = 321,185,334,836.16/466,639.20
  6. Step 6: Final answer
    x = 688,294.80

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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.