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Finding the Fourth Proportional to 564,796.80, 847,195.20 and 486,064.80

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Solution

The fourth proportional to 564,796.80, 847,195.20 and 486,064.80 is: 729,097.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,796.80 : 847,195.20 = 486,064.80 : x
  2. Step 2: Convert to fraction form
    564,796.80/847,195.20 = 486,064.80/x
  3. Step 3: Cross multiply
    564,796.80x = 847,195.20 × 486,064.80
  4. Step 4: Simplify right side
    564,796.80x = 411,791,765,448.96
  5. Step 5: Solve for x
    x = 411,791,765,448.96/564,796.80
  6. Step 6: Final answer
    x = 729,097.20

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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.