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Finding the Fourth Proportional to 468,823.20, 703,234.80 and 449,140.20

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Solution

The fourth proportional to 468,823.20, 703,234.80 and 449,140.20 is: 673,710.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,823.20 : 703,234.80 = 449,140.20 : x
  2. Step 2: Convert to fraction form
    468,823.20/703,234.80 = 449,140.20/x
  3. Step 3: Cross multiply
    468,823.20x = 703,234.80 × 449,140.20
  4. Step 4: Simplify right side
    468,823.20x = 315,851,018,718.96
  5. Step 5: Solve for x
    x = 315,851,018,718.96/468,823.20
  6. Step 6: Final answer
    x = 673,710.30

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Similar ratio
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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.