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Finding the Fourth Proportional to 527,775.57, 791,664.03 and 128,416.41

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Solution

The fourth proportional to 527,775.57, 791,664.03 and 128,416.41 is: 192,624.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,775.57 : 791,664.03 = 128,416.41 : x
  2. Step 2: Convert to fraction form
    527,775.57/791,664.03 = 128,416.41/x
  3. Step 3: Cross multiply
    527,775.57x = 791,664.03 × 128,416.41
  4. Step 4: Simplify right side
    527,775.57x = 101,662,652,658.73
  5. Step 5: Solve for x
    x = 101,662,652,658.73/527,775.57
  6. Step 6: Final answer
    x = 192,624.78

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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.