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Finding the Fourth Proportional to 576,132.20, 863,463.90 and 323,412.20

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Solution

The fourth proportional to 576,132.20, 863,463.90 and 323,412.20 is: 484,706.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,132.20 : 863,463.90 = 323,412.20 : x
  2. Step 2: Convert to fraction form
    576,132.20/863,463.90 = 323,412.20/x
  3. Step 3: Cross multiply
    576,132.20x = 863,463.90 × 323,412.20
  4. Step 4: Simplify right side
    576,132.20x = 279,254,759,519.58
  5. Step 5: Solve for x
    x = 279,254,759,519.58/576,132.20
  6. Step 6: Final answer
    x = 484,706.04

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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.