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Finding the Fourth Proportional to 508,906.60, 763,359.90 and 483,245.80

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Solution

The fourth proportional to 508,906.60, 763,359.90 and 483,245.80 is: 724,868.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,906.60 : 763,359.90 = 483,245.80 : x
  2. Step 2: Convert to fraction form
    508,906.60/763,359.90 = 483,245.80/x
  3. Step 3: Cross multiply
    508,906.60x = 763,359.90 × 483,245.80
  4. Step 4: Simplify right side
    508,906.60x = 368,890,465,563.42
  5. Step 5: Solve for x
    x = 368,890,465,563.42/508,906.60
  6. Step 6: Final answer
    x = 724,868.70

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Double scale
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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.