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Finding the Fourth Proportional to 356,726.76, 534,377.19 and 214,494.15

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Solution

The fourth proportional to 356,726.76, 534,377.19 and 214,494.15 is: 321,312.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,726.76 : 534,377.19 = 214,494.15 : x
  2. Step 2: Convert to fraction form
    356,726.76/534,377.19 = 214,494.15/x
  3. Step 3: Cross multiply
    356,726.76x = 534,377.19 × 214,494.15
  4. Step 4: Simplify right side
    356,726.76x = 114,620,781,148.44
  5. Step 5: Solve for x
    x = 114,620,781,148.44/356,726.76
  6. Step 6: Final answer
    x = 321,312.54

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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.