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Finding the Fourth Proportional to 486,064.20, 729,096.30 and 466,381.20

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Solution

The fourth proportional to 486,064.20, 729,096.30 and 466,381.20 is: 699,571.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,064.20 : 729,096.30 = 466,381.20 : x
  2. Step 2: Convert to fraction form
    486,064.20/729,096.30 = 466,381.20/x
  3. Step 3: Cross multiply
    486,064.20x = 729,096.30 × 466,381.20
  4. Step 4: Simplify right side
    486,064.20x = 340,036,807,309.56
  5. Step 5: Solve for x
    x = 340,036,807,309.56/486,064.20
  6. Step 6: Final answer
    x = 699,571.80

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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.