Home / 625,669.72-862,965.60-410,731.36

Finding the Fourth Proportional to 625,669.72, 862,965.60 and 410,731.36

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Solution

The fourth proportional to 625,669.72, 862,965.60 and 410,731.36 is: 566,508.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,669.72 : 862,965.60 = 410,731.36 : x
  2. Step 2: Convert to fraction form
    625,669.72/862,965.60 = 410,731.36/x
  3. Step 3: Cross multiply
    625,669.72x = 862,965.60 × 410,731.36
  4. Step 4: Simplify right side
    625,669.72x = 354,447,030,823.56
  5. Step 5: Solve for x
    x = 354,447,030,823.56/625,669.72
  6. Step 6: Final answer
    x = 566,508.21

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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.