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Finding the Fourth Proportional to 454,516.80, 681,775.20 and 154,970.70

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Solution

The fourth proportional to 454,516.80, 681,775.20 and 154,970.70 is: 232,456.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,516.80 : 681,775.20 = 154,970.70 : x
  2. Step 2: Convert to fraction form
    454,516.80/681,775.20 = 154,970.70/x
  3. Step 3: Cross multiply
    454,516.80x = 681,775.20 × 154,970.70
  4. Step 4: Simplify right side
    454,516.80x = 105,655,179,986.64
  5. Step 5: Solve for x
    x = 105,655,179,986.64/454,516.80
  6. Step 6: Final answer
    x = 232,456.05

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Similar ratio
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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.