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Finding the Fourth Proportional to 440,891.77, 607,867.25 and 285,568.91

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Solution

The fourth proportional to 440,891.77, 607,867.25 and 285,568.91 is: 393,720.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,891.77 : 607,867.25 = 285,568.91 : x
  2. Step 2: Convert to fraction form
    440,891.77/607,867.25 = 285,568.91/x
  3. Step 3: Cross multiply
    440,891.77x = 607,867.25 × 285,568.91
  4. Step 4: Simplify right side
    440,891.77x = 173,587,988,007.20
  5. Step 5: Solve for x
    x = 173,587,988,007.20/440,891.77
  6. Step 6: Final answer
    x = 393,720.18

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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.