Home / 816,974.20-1,127,286.80-454,350.16

Finding the Fourth Proportional to 816,974.20, 1,127,286.80 and 454,350.16

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Solution

The fourth proportional to 816,974.20, 1,127,286.80 and 454,350.16 is: 626,926.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,974.20 : 1,127,286.80 = 454,350.16 : x
  2. Step 2: Convert to fraction form
    816,974.20/1,127,286.80 = 454,350.16/x
  3. Step 3: Cross multiply
    816,974.20x = 1,127,286.80 × 454,350.16
  4. Step 4: Simplify right side
    816,974.20x = 512,182,932,309.45
  5. Step 5: Solve for x
    x = 512,182,932,309.45/816,974.20
  6. Step 6: Final answer
    x = 626,926.70

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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.