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Finding the Fourth Proportional to 494,818.20, 742,227.30 and 433,800.90

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Solution

The fourth proportional to 494,818.20, 742,227.30 and 433,800.90 is: 650,701.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,818.20 : 742,227.30 = 433,800.90 : x
  2. Step 2: Convert to fraction form
    494,818.20/742,227.30 = 433,800.90/x
  3. Step 3: Cross multiply
    494,818.20x = 742,227.30 × 433,800.90
  4. Step 4: Simplify right side
    494,818.20x = 321,978,870,744.57
  5. Step 5: Solve for x
    x = 321,978,870,744.57/494,818.20
  6. Step 6: Final answer
    x = 650,701.35

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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.