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Finding the Fourth Proportional to 347,422.17, 479,437.90 and 194,460.32

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Solution

The fourth proportional to 347,422.17, 479,437.90 and 194,460.32 is: 268,352.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,422.17 : 479,437.90 = 194,460.32 : x
  2. Step 2: Convert to fraction form
    347,422.17/479,437.90 = 194,460.32/x
  3. Step 3: Cross multiply
    347,422.17x = 479,437.90 × 194,460.32
  4. Step 4: Simplify right side
    347,422.17x = 93,231,648,166.57
  5. Step 5: Solve for x
    x = 93,231,648,166.57/347,422.17
  6. Step 6: Final answer
    x = 268,352.61

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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.