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Finding the Fourth Proportional to 293,730.67, 440,506.31 and 203,128.46

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Solution

The fourth proportional to 293,730.67, 440,506.31 and 203,128.46 is: 304,630.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,730.67 : 440,506.31 = 203,128.46 : x
  2. Step 2: Convert to fraction form
    293,730.67/440,506.31 = 203,128.46/x
  3. Step 3: Cross multiply
    293,730.67x = 440,506.31 × 203,128.46
  4. Step 4: Simplify right side
    293,730.67x = 89,479,368,456.21
  5. Step 5: Solve for x
    x = 89,479,368,456.21/293,730.67
  6. Step 6: Final answer
    x = 304,630.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.