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Finding the Fourth Proportional to 471,103.39, 650,063.64 and 318,473.70

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Solution

The fourth proportional to 471,103.39, 650,063.64 and 318,473.70 is: 439,453.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,103.39 : 650,063.64 = 318,473.70 : x
  2. Step 2: Convert to fraction form
    471,103.39/650,063.64 = 318,473.70/x
  3. Step 3: Cross multiply
    471,103.39x = 650,063.64 × 318,473.70
  4. Step 4: Simplify right side
    471,103.39x = 207,028,172,666.27
  5. Step 5: Solve for x
    x = 207,028,172,666.27/471,103.39
  6. Step 6: Final answer
    x = 439,453.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.