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Finding the Fourth Proportional to 310,905.20, 466,012.20 and 170,764.40

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Solution

The fourth proportional to 310,905.20, 466,012.20 and 170,764.40 is: 255,956.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,905.20 : 466,012.20 = 170,764.40 : x
  2. Step 2: Convert to fraction form
    310,905.20/466,012.20 = 170,764.40/x
  3. Step 3: Cross multiply
    310,905.20x = 466,012.20 × 170,764.40
  4. Step 4: Simplify right side
    310,905.20x = 79,578,293,725.68
  5. Step 5: Solve for x
    x = 79,578,293,725.68/310,905.20
  6. Step 6: Final answer
    x = 255,956.78

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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.