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Finding the Fourth Proportional to 629,829.80, 944,751.90 and 156,516.20

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Solution

The fourth proportional to 629,829.80, 944,751.90 and 156,516.20 is: 234,776.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,829.80 : 944,751.90 = 156,516.20 : x
  2. Step 2: Convert to fraction form
    629,829.80/944,751.90 = 156,516.20/x
  3. Step 3: Cross multiply
    629,829.80x = 944,751.90 × 156,516.20
  4. Step 4: Simplify right side
    629,829.80x = 147,868,977,330.78
  5. Step 5: Solve for x
    x = 147,868,977,330.78/629,829.80
  6. Step 6: Final answer
    x = 234,776.09

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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.