Home / 639,922.56-883,200.96-371,806.08

Finding the Fourth Proportional to 639,922.56, 883,200.96 and 371,806.08

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Solution

The fourth proportional to 639,922.56, 883,200.96 and 371,806.08 is: 513,155.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,922.56 : 883,200.96 = 371,806.08 : x
  2. Step 2: Convert to fraction form
    639,922.56/883,200.96 = 371,806.08/x
  3. Step 3: Cross multiply
    639,922.56x = 883,200.96 × 371,806.08
  4. Step 4: Simplify right side
    639,922.56x = 328,379,486,789.84
  5. Step 5: Solve for x
    x = 328,379,486,789.84/639,922.56
  6. Step 6: Final answer
    x = 513,155.04

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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.