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Finding the Fourth Proportional to 347,574.28, 479,612.86 and 194,591.20

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Solution

The fourth proportional to 347,574.28, 479,612.86 and 194,591.20 is: 268,513.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,574.28 : 479,612.86 = 194,591.20 : x
  2. Step 2: Convert to fraction form
    347,574.28/479,612.86 = 194,591.20/x
  3. Step 3: Cross multiply
    347,574.28x = 479,612.86 × 194,591.20
  4. Step 4: Simplify right side
    347,574.28x = 93,328,440,277.32
  5. Step 5: Solve for x
    x = 93,328,440,277.32/347,574.28
  6. Step 6: Final answer
    x = 268,513.66

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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.