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Finding the Fourth Proportional to 474,891.40, 712,337.10 and 453,896.20

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Solution

The fourth proportional to 474,891.40, 712,337.10 and 453,896.20 is: 680,844.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,891.40 : 712,337.10 = 453,896.20 : x
  2. Step 2: Convert to fraction form
    474,891.40/712,337.10 = 453,896.20/x
  3. Step 3: Cross multiply
    474,891.40x = 712,337.10 × 453,896.20
  4. Step 4: Simplify right side
    474,891.40x = 323,327,102,809.02
  5. Step 5: Solve for x
    x = 323,327,102,809.02/474,891.40
  6. Step 6: Final answer
    x = 680,844.30

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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.