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Finding the Fourth Proportional to 468,762.12, 703,037.90 and 215,800.20

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Solution

The fourth proportional to 468,762.12, 703,037.90 and 215,800.20 is: 323,651.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,762.12 : 703,037.90 = 215,800.20 : x
  2. Step 2: Convert to fraction form
    468,762.12/703,037.90 = 215,800.20/x
  3. Step 3: Cross multiply
    468,762.12x = 703,037.90 × 215,800.20
  4. Step 4: Simplify right side
    468,762.12x = 151,715,719,427.58
  5. Step 5: Solve for x
    x = 151,715,719,427.58/468,762.12
  6. Step 6: Final answer
    x = 323,651.83

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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.