Home / 403,414.77-556,726.19-222,139.20

Finding the Fourth Proportional to 403,414.77, 556,726.19 and 222,139.20

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Solution

The fourth proportional to 403,414.77, 556,726.19 and 222,139.20 is: 306,559.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,414.77 : 556,726.19 = 222,139.20 : x
  2. Step 2: Convert to fraction form
    403,414.77/556,726.19 = 222,139.20/x
  3. Step 3: Cross multiply
    403,414.77x = 556,726.19 × 222,139.20
  4. Step 4: Simplify right side
    403,414.77x = 123,670,709,354.95
  5. Step 5: Solve for x
    x = 123,670,709,354.95/403,414.77
  6. Step 6: Final answer
    x = 306,559.70

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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.