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Finding the Fourth Proportional to 316,687.49, 437,012.07 and 173,444.48

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Solution

The fourth proportional to 316,687.49, 437,012.07 and 173,444.48 is: 239,344.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,687.49 : 437,012.07 = 173,444.48 : x
  2. Step 2: Convert to fraction form
    316,687.49/437,012.07 = 173,444.48/x
  3. Step 3: Cross multiply
    316,687.49x = 437,012.07 × 173,444.48
  4. Step 4: Simplify right side
    316,687.49x = 75,797,331,234.87
  5. Step 5: Solve for x
    x = 75,797,331,234.87/316,687.49
  6. Step 6: Final answer
    x = 239,344.25

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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.