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Finding the Fourth Proportional to 347,490.88, 479,534.17 and 196,587.88

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Solution

The fourth proportional to 347,490.88, 479,534.17 and 196,587.88 is: 271,289.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,490.88 : 479,534.17 = 196,587.88 : x
  2. Step 2: Convert to fraction form
    347,490.88/479,534.17 = 196,587.88/x
  3. Step 3: Cross multiply
    347,490.88x = 479,534.17 × 196,587.88
  4. Step 4: Simplify right side
    347,490.88x = 94,270,602,978.72
  5. Step 5: Solve for x
    x = 94,270,602,978.72/347,490.88
  6. Step 6: Final answer
    x = 271,289.43

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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.