Home / 820,081.65-1,131,713.19-457,505.55

Finding the Fourth Proportional to 820,081.65, 1,131,713.19 and 457,505.55

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Solution

The fourth proportional to 820,081.65, 1,131,713.19 and 457,505.55 is: 631,357.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,081.65 : 1,131,713.19 = 457,505.55 : x
  2. Step 2: Convert to fraction form
    820,081.65/1,131,713.19 = 457,505.55/x
  3. Step 3: Cross multiply
    820,081.65x = 1,131,713.19 × 457,505.55
  4. Step 4: Simplify right side
    820,081.65x = 517,765,065,433.20
  5. Step 5: Solve for x
    x = 517,765,065,433.20/820,081.65
  6. Step 6: Final answer
    x = 631,357.95

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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.