Home / 624,619.30-861,974.90-338,139.38

Finding the Fourth Proportional to 624,619.30, 861,974.90 and 338,139.38

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Solution

The fourth proportional to 624,619.30, 861,974.90 and 338,139.38 is: 466,632.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,619.30 : 861,974.90 = 338,139.38 : x
  2. Step 2: Convert to fraction form
    624,619.30/861,974.90 = 338,139.38/x
  3. Step 3: Cross multiply
    624,619.30x = 861,974.90 × 338,139.38
  4. Step 4: Simplify right side
    624,619.30x = 291,467,658,261.56
  5. Step 5: Solve for x
    x = 291,467,658,261.56/624,619.30
  6. Step 6: Final answer
    x = 466,632.49

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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.