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Finding the Fourth Proportional to 650,191.16, 897,444.12 and 378,311.56

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Solution

The fourth proportional to 650,191.16, 897,444.12 and 378,311.56 is: 522,174.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,191.16 : 897,444.12 = 378,311.56 : x
  2. Step 2: Convert to fraction form
    650,191.16/897,444.12 = 378,311.56/x
  3. Step 3: Cross multiply
    650,191.16x = 897,444.12 × 378,311.56
  4. Step 4: Simplify right side
    650,191.16x = 339,513,485,050.03
  5. Step 5: Solve for x
    x = 339,513,485,050.03/650,191.16
  6. Step 6: Final answer
    x = 522,174.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.