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Finding the Fourth Proportional to 347,470.25, 479,509.13 and 194,508.73

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Solution

The fourth proportional to 347,470.25, 479,509.13 and 194,508.73 is: 268,422.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,470.25 : 479,509.13 = 194,508.73 : x
  2. Step 2: Convert to fraction form
    347,470.25/479,509.13 = 194,508.73/x
  3. Step 3: Cross multiply
    347,470.25x = 479,509.13 × 194,508.73
  4. Step 4: Simplify right side
    347,470.25x = 93,268,714,333.98
  5. Step 5: Solve for x
    x = 93,268,714,333.98/347,470.25
  6. Step 6: Final answer
    x = 268,422.16

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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.