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Finding the Fourth Proportional to 251,259.60, 376,306.20 and 171,944.40

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Solution

The fourth proportional to 251,259.60, 376,306.20 and 171,944.40 is: 257,517.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,259.60 : 376,306.20 = 171,944.40 : x
  2. Step 2: Convert to fraction form
    251,259.60/376,306.20 = 171,944.40/x
  3. Step 3: Cross multiply
    251,259.60x = 376,306.20 × 171,944.40
  4. Step 4: Simplify right side
    251,259.60x = 64,703,743,775.28
  5. Step 5: Solve for x
    x = 64,703,743,775.28/251,259.60
  6. Step 6: Final answer
    x = 257,517.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.