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Finding the Fourth Proportional to 482,854.40, 724,281.60 and 304,395.20

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Solution

The fourth proportional to 482,854.40, 724,281.60 and 304,395.20 is: 456,592.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,854.40 : 724,281.60 = 304,395.20 : x
  2. Step 2: Convert to fraction form
    482,854.40/724,281.60 = 304,395.20/x
  3. Step 3: Cross multiply
    482,854.40x = 724,281.60 × 304,395.20
  4. Step 4: Simplify right side
    482,854.40x = 220,467,842,488.32
  5. Step 5: Solve for x
    x = 220,467,842,488.32/482,854.40
  6. Step 6: Final answer
    x = 456,592.80

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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.