Home / 718,724.23-991,822.07-396,427.41

Finding the Fourth Proportional to 718,724.23, 991,822.07 and 396,427.41

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Solution

The fourth proportional to 718,724.23, 991,822.07 and 396,427.41 is: 547,060.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,724.23 : 991,822.07 = 396,427.41 : x
  2. Step 2: Convert to fraction form
    718,724.23/991,822.07 = 396,427.41/x
  3. Step 3: Cross multiply
    718,724.23x = 991,822.07 × 396,427.41
  4. Step 4: Simplify right side
    718,724.23x = 393,185,454,390.94
  5. Step 5: Solve for x
    x = 393,185,454,390.94/718,724.23
  6. Step 6: Final answer
    x = 547,060.25

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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.