Home / 813,832.12-1,123,151.81-451,326.85

Finding the Fourth Proportional to 813,832.12, 1,123,151.81 and 451,326.85

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Solution

The fourth proportional to 813,832.12, 1,123,151.81 and 451,326.85 is: 622,866.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,832.12 : 1,123,151.81 = 451,326.85 : x
  2. Step 2: Convert to fraction form
    813,832.12/1,123,151.81 = 451,326.85/x
  3. Step 3: Cross multiply
    813,832.12x = 1,123,151.81 × 451,326.85
  4. Step 4: Simplify right side
    813,832.12x = 506,908,563,414.59
  5. Step 5: Solve for x
    x = 506,908,563,414.59/813,832.12
  6. Step 6: Final answer
    x = 622,866.25

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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.