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Finding the Fourth Proportional to 330,016.68, 455,423.31 and 179,113.68

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Solution

The fourth proportional to 330,016.68, 455,423.31 and 179,113.68 is: 247,177.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,016.68 : 455,423.31 = 179,113.68 : x
  2. Step 2: Convert to fraction form
    330,016.68/455,423.31 = 179,113.68/x
  3. Step 3: Cross multiply
    330,016.68x = 455,423.31 × 179,113.68
  4. Step 4: Simplify right side
    330,016.68x = 81,572,545,011.88
  5. Step 5: Solve for x
    x = 81,572,545,011.88/330,016.68
  6. Step 6: Final answer
    x = 247,177.04

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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.