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Finding the Fourth Proportional to 639,352.20, 960,065.10 and 463,096.20

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Solution

The fourth proportional to 639,352.20, 960,065.10 and 463,096.20 is: 695,395.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,352.20 : 960,065.10 = 463,096.20 : x
  2. Step 2: Convert to fraction form
    639,352.20/960,065.10 = 463,096.20/x
  3. Step 3: Cross multiply
    639,352.20x = 960,065.10 × 463,096.20
  4. Step 4: Simplify right side
    639,352.20x = 444,602,499,562.62
  5. Step 5: Solve for x
    x = 444,602,499,562.62/639,352.20
  6. Step 6: Final answer
    x = 695,395.28

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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.