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Finding the Fourth Proportional to 577,860.20, 866,790.30 and 484,548.20

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Solution

The fourth proportional to 577,860.20, 866,790.30 and 484,548.20 is: 726,822.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,860.20 : 866,790.30 = 484,548.20 : x
  2. Step 2: Convert to fraction form
    577,860.20/866,790.30 = 484,548.20/x
  3. Step 3: Cross multiply
    577,860.20x = 866,790.30 × 484,548.20
  4. Step 4: Simplify right side
    577,860.20x = 420,001,679,642.46
  5. Step 5: Solve for x
    x = 420,001,679,642.46/577,860.20
  6. Step 6: Final answer
    x = 726,822.30

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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.