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Finding the Fourth Proportional to 293,691.84, 405,489.72 and 225,587.04

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Solution

The fourth proportional to 293,691.84, 405,489.72 and 225,587.04 is: 311,459.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,691.84 : 405,489.72 = 225,587.04 : x
  2. Step 2: Convert to fraction form
    293,691.84/405,489.72 = 225,587.04/x
  3. Step 3: Cross multiply
    293,691.84x = 405,489.72 × 225,587.04
  4. Step 4: Simplify right side
    293,691.84x = 91,473,225,685.23
  5. Step 5: Solve for x
    x = 91,473,225,685.23/293,691.84
  6. Step 6: Final answer
    x = 311,459.88

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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.