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Finding the Fourth Proportional to 482,574.60, 723,861.90 and 404,425.80

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Solution

The fourth proportional to 482,574.60, 723,861.90 and 404,425.80 is: 606,638.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,574.60 : 723,861.90 = 404,425.80 : x
  2. Step 2: Convert to fraction form
    482,574.60/723,861.90 = 404,425.80/x
  3. Step 3: Cross multiply
    482,574.60x = 723,861.90 × 404,425.80
  4. Step 4: Simplify right side
    482,574.60x = 292,748,427,997.02
  5. Step 5: Solve for x
    x = 292,748,427,997.02/482,574.60
  6. Step 6: Final answer
    x = 606,638.70

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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.