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Finding the Fourth Proportional to 499,240.20, 748,860.30 and 475,912.20

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Solution

The fourth proportional to 499,240.20, 748,860.30 and 475,912.20 is: 713,868.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,240.20 : 748,860.30 = 475,912.20 : x
  2. Step 2: Convert to fraction form
    499,240.20/748,860.30 = 475,912.20/x
  3. Step 3: Cross multiply
    499,240.20x = 748,860.30 × 475,912.20
  4. Step 4: Simplify right side
    499,240.20x = 356,391,752,865.66
  5. Step 5: Solve for x
    x = 356,391,752,865.66/499,240.20
  6. Step 6: Final answer
    x = 713,868.30

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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.