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Finding the Fourth Proportional to 313,171.20, 432,174.96 and 185,951.52

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Solution

The fourth proportional to 313,171.20, 432,174.96 and 185,951.52 is: 256,612.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,171.20 : 432,174.96 = 185,951.52 : x
  2. Step 2: Convert to fraction form
    313,171.20/432,174.96 = 185,951.52/x
  3. Step 3: Cross multiply
    313,171.20x = 432,174.96 × 185,951.52
  4. Step 4: Simplify right side
    313,171.20x = 80,363,590,717.94
  5. Step 5: Solve for x
    x = 80,363,590,717.94/313,171.20
  6. Step 6: Final answer
    x = 256,612.33

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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.