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Finding the Fourth Proportional to 482,870.40, 724,305.60 and 451,766.40

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Solution

The fourth proportional to 482,870.40, 724,305.60 and 451,766.40 is: 677,649.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,870.40 : 724,305.60 = 451,766.40 : x
  2. Step 2: Convert to fraction form
    482,870.40/724,305.60 = 451,766.40/x
  3. Step 3: Cross multiply
    482,870.40x = 724,305.60 × 451,766.40
  4. Step 4: Simplify right side
    482,870.40x = 327,216,933,411.84
  5. Step 5: Solve for x
    x = 327,216,933,411.84/482,870.40
  6. Step 6: Final answer
    x = 677,649.60

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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.