Home / 891,952.20-1,338,101.10-386,512.20

Finding the Fourth Proportional to 891,952.20, 1,338,101.10 and 386,512.20

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Solution

The fourth proportional to 891,952.20, 1,338,101.10 and 386,512.20 is: 579,843.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,952.20 : 1,338,101.10 = 386,512.20 : x
  2. Step 2: Convert to fraction form
    891,952.20/1,338,101.10 = 386,512.20/x
  3. Step 3: Cross multiply
    891,952.20x = 1,338,101.10 × 386,512.20
  4. Step 4: Simplify right side
    891,952.20x = 517,192,399,983.42
  5. Step 5: Solve for x
    x = 517,192,399,983.42/891,952.20
  6. Step 6: Final answer
    x = 579,843.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.