Home / 816,727.62-1,127,037.82-454,143.70

Finding the Fourth Proportional to 816,727.62, 1,127,037.82 and 454,143.70

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Solution

The fourth proportional to 816,727.62, 1,127,037.82 and 454,143.70 is: 626,692.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,727.62 : 1,127,037.82 = 454,143.70 : x
  2. Step 2: Convert to fraction form
    816,727.62/1,127,037.82 = 454,143.70/x
  3. Step 3: Cross multiply
    816,727.62x = 1,127,037.82 × 454,143.70
  4. Step 4: Simplify right side
    816,727.62x = 511,837,121,661.78
  5. Step 5: Solve for x
    x = 511,837,121,661.78/816,727.62
  6. Step 6: Final answer
    x = 626,692.56

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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.