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Finding the Fourth Proportional to 347,402.57, 479,034.84 and 226,319.31

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Solution

The fourth proportional to 347,402.57, 479,034.84 and 226,319.31 is: 312,072.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,402.57 : 479,034.84 = 226,319.31 : x
  2. Step 2: Convert to fraction form
    347,402.57/479,034.84 = 226,319.31/x
  3. Step 3: Cross multiply
    347,402.57x = 479,034.84 × 226,319.31
  4. Step 4: Simplify right side
    347,402.57x = 108,414,834,030.41
  5. Step 5: Solve for x
    x = 108,414,834,030.41/347,402.57
  6. Step 6: Final answer
    x = 312,072.64

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1.5x scale

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.