Home / 813,943.44-1,123,012.44-641,326.08

Finding the Fourth Proportional to 813,943.44, 1,123,012.44 and 641,326.08

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Solution

The fourth proportional to 813,943.44, 1,123,012.44 and 641,326.08 is: 884,849.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,943.44 : 1,123,012.44 = 641,326.08 : x
  2. Step 2: Convert to fraction form
    813,943.44/1,123,012.44 = 641,326.08/x
  3. Step 3: Cross multiply
    813,943.44x = 1,123,012.44 × 641,326.08
  4. Step 4: Simplify right side
    813,943.44x = 720,217,165,936.44
  5. Step 5: Solve for x
    x = 720,217,165,936.44/813,943.44
  6. Step 6: Final answer
    x = 884,849.16

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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.