Home / 714,426.44-985,921.21-392,166.52

Finding the Fourth Proportional to 714,426.44, 985,921.21 and 392,166.52

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Solution

The fourth proportional to 714,426.44, 985,921.21 and 392,166.52 is: 541,196.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,426.44 : 985,921.21 = 392,166.52 : x
  2. Step 2: Convert to fraction form
    714,426.44/985,921.21 = 392,166.52/x
  3. Step 3: Cross multiply
    714,426.44x = 985,921.21 × 392,166.52
  4. Step 4: Simplify right side
    714,426.44x = 386,645,288,939.47
  5. Step 5: Solve for x
    x = 386,645,288,939.47/714,426.44
  6. Step 6: Final answer
    x = 541,196.78

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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.