Home / 418,976.19-578,182.28-227,986.29

Finding the Fourth Proportional to 418,976.19, 578,182.28 and 227,986.29

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Solution

The fourth proportional to 418,976.19, 578,182.28 and 227,986.29 is: 314,618.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,976.19 : 578,182.28 = 227,986.29 : x
  2. Step 2: Convert to fraction form
    418,976.19/578,182.28 = 227,986.29/x
  3. Step 3: Cross multiply
    418,976.19x = 578,182.28 × 227,986.29
  4. Step 4: Simplify right side
    418,976.19x = 131,817,632,960.94
  5. Step 5: Solve for x
    x = 131,817,632,960.94/418,976.19
  6. Step 6: Final answer
    x = 314,618.43

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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.