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Finding the Fourth Proportional to 440,888.77, 607,863.12 and 285,565.91

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Solution

The fourth proportional to 440,888.77, 607,863.12 and 285,565.91 is: 393,716.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,888.77 : 607,863.12 = 285,565.91 : x
  2. Step 2: Convert to fraction form
    440,888.77/607,863.12 = 285,565.91/x
  3. Step 3: Cross multiply
    440,888.77x = 607,863.12 × 285,565.91
  4. Step 4: Simplify right side
    440,888.77x = 173,584,980,908.05
  5. Step 5: Solve for x
    x = 173,584,980,908.05/440,888.77
  6. Step 6: Final answer
    x = 393,716.04

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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.