Home / 718,833.52-991,947.72-396,544.24

Finding the Fourth Proportional to 718,833.52, 991,947.72 and 396,544.24

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Solution

The fourth proportional to 718,833.52, 991,947.72 and 396,544.24 is: 547,207.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,833.52 : 991,947.72 = 396,544.24 : x
  2. Step 2: Convert to fraction form
    718,833.52/991,947.72 = 396,544.24/x
  3. Step 3: Cross multiply
    718,833.52x = 991,947.72 × 396,544.24
  4. Step 4: Simplify right side
    718,833.52x = 393,351,154,747.13
  5. Step 5: Solve for x
    x = 393,351,154,747.13/718,833.52
  6. Step 6: Final answer
    x = 547,207.59

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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.