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Finding the Fourth Proportional to 316,936.17, 437,369.40 and 173,695.87

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Solution

The fourth proportional to 316,936.17, 437,369.40 and 173,695.87 is: 239,698.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,936.17 : 437,369.40 = 173,695.87 : x
  2. Step 2: Convert to fraction form
    316,936.17/437,369.40 = 173,695.87/x
  3. Step 3: Cross multiply
    316,936.17x = 437,369.40 × 173,695.87
  4. Step 4: Simplify right side
    316,936.17x = 75,969,258,444.38
  5. Step 5: Solve for x
    x = 75,969,258,444.38/316,936.17
  6. Step 6: Final answer
    x = 239,698.92

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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.