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Finding the Fourth Proportional to 482,970.80, 724,456.20 and 474,676.40

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Solution

The fourth proportional to 482,970.80, 724,456.20 and 474,676.40 is: 712,014.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,970.80 : 724,456.20 = 474,676.40 : x
  2. Step 2: Convert to fraction form
    482,970.80/724,456.20 = 474,676.40/x
  3. Step 3: Cross multiply
    482,970.80x = 724,456.20 × 474,676.40
  4. Step 4: Simplify right side
    482,970.80x = 343,882,260,973.68
  5. Step 5: Solve for x
    x = 343,882,260,973.68/482,970.80
  6. Step 6: Final answer
    x = 712,014.60

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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.