Home / 718,298.25-991,251.36-412,394.46

Finding the Fourth Proportional to 718,298.25, 991,251.36 and 412,394.46

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Solution

The fourth proportional to 718,298.25, 991,251.36 and 412,394.46 is: 569,104.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,298.25 : 991,251.36 = 412,394.46 : x
  2. Step 2: Convert to fraction form
    718,298.25/991,251.36 = 412,394.46/x
  3. Step 3: Cross multiply
    718,298.25x = 991,251.36 × 412,394.46
  4. Step 4: Simplify right side
    718,298.25x = 408,786,569,331.47
  5. Step 5: Solve for x
    x = 408,786,569,331.47/718,298.25
  6. Step 6: Final answer
    x = 569,104.23

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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.