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Finding the Fourth Proportional to 482,876.40, 724,314.60 and 304,417.20

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Solution

The fourth proportional to 482,876.40, 724,314.60 and 304,417.20 is: 456,625.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,876.40 : 724,314.60 = 304,417.20 : x
  2. Step 2: Convert to fraction form
    482,876.40/724,314.60 = 304,417.20/x
  3. Step 3: Cross multiply
    482,876.40x = 724,314.60 × 304,417.20
  4. Step 4: Simplify right side
    482,876.40x = 220,493,822,451.12
  5. Step 5: Solve for x
    x = 220,493,822,451.12/482,876.40
  6. Step 6: Final answer
    x = 456,625.80

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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.