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Finding the Fourth Proportional to 482,787.90, 724,181.85 and 304,328.70

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Solution

The fourth proportional to 482,787.90, 724,181.85 and 304,328.70 is: 456,493.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,787.90 : 724,181.85 = 304,328.70 : x
  2. Step 2: Convert to fraction form
    482,787.90/724,181.85 = 304,328.70/x
  3. Step 3: Cross multiply
    482,787.90x = 724,181.85 × 304,328.70
  4. Step 4: Simplify right side
    482,787.90x = 220,389,320,974.10
  5. Step 5: Solve for x
    x = 220,389,320,974.10/482,787.90
  6. Step 6: Final answer
    x = 456,493.05

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Similar ratio
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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.