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Finding the Fourth Proportional to 622,245.12, 934,300.80 and 356,305.92

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Solution

The fourth proportional to 622,245.12, 934,300.80 and 356,305.92 is: 534,993.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,245.12 : 934,300.80 = 356,305.92 : x
  2. Step 2: Convert to fraction form
    622,245.12/934,300.80 = 356,305.92/x
  3. Step 3: Cross multiply
    622,245.12x = 934,300.80 × 356,305.92
  4. Step 4: Simplify right side
    622,245.12x = 332,896,906,100.74
  5. Step 5: Solve for x
    x = 332,896,906,100.74/622,245.12
  6. Step 6: Final answer
    x = 534,993.20

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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.