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Finding the Fourth Proportional to 314,336.69, 471,500.42 and 77,679.37

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Solution

The fourth proportional to 314,336.69, 471,500.42 and 77,679.37 is: 116,517.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,336.69 : 471,500.42 = 77,679.37 : x
  2. Step 2: Convert to fraction form
    314,336.69/471,500.42 = 77,679.37/x
  3. Step 3: Cross multiply
    314,336.69x = 471,500.42 × 77,679.37
  4. Step 4: Simplify right side
    314,336.69x = 36,625,855,781.31
  5. Step 5: Solve for x
    x = 36,625,855,781.31/314,336.69
  6. Step 6: Final answer
    x = 116,517.92

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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.