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Finding the Fourth Proportional to 629,973.55, 944,964.09 and 156,658.92

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Solution

The fourth proportional to 629,973.55, 944,964.09 and 156,658.92 is: 234,989.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,973.55 : 944,964.09 = 156,658.92 : x
  2. Step 2: Convert to fraction form
    629,973.55/944,964.09 = 156,658.92/x
  3. Step 3: Cross multiply
    629,973.55x = 944,964.09 × 156,658.92
  4. Step 4: Simplify right side
    629,973.55x = 148,037,053,778.18
  5. Step 5: Solve for x
    x = 148,037,053,778.18/629,973.55
  6. Step 6: Final answer
    x = 234,989.32

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Half scale
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Double scale
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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.