Home / 624,619.92-861,968.34-338,133.72

Finding the Fourth Proportional to 624,619.92, 861,968.34 and 338,133.72

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Solution

The fourth proportional to 624,619.92, 861,968.34 and 338,133.72 is: 466,620.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,619.92 : 861,968.34 = 338,133.72 : x
  2. Step 2: Convert to fraction form
    624,619.92/861,968.34 = 338,133.72/x
  3. Step 3: Cross multiply
    624,619.92x = 861,968.34 × 338,133.72
  4. Step 4: Simplify right side
    624,619.92x = 291,460,561,326.43
  5. Step 5: Solve for x
    x = 291,460,561,326.43/624,619.92
  6. Step 6: Final answer
    x = 466,620.66

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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.