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Finding the Fourth Proportional to 412,877.80, 619,316.70 and 226,253.80

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Solution

The fourth proportional to 412,877.80, 619,316.70 and 226,253.80 is: 339,380.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,877.80 : 619,316.70 = 226,253.80 : x
  2. Step 2: Convert to fraction form
    412,877.80/619,316.70 = 226,253.80/x
  3. Step 3: Cross multiply
    412,877.80x = 619,316.70 × 226,253.80
  4. Step 4: Simplify right side
    412,877.80x = 140,122,756,778.46
  5. Step 5: Solve for x
    x = 140,122,756,778.46/412,877.80
  6. Step 6: Final answer
    x = 339,380.70

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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.