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Finding the Fourth Proportional to 438,847.34, 658,238.18 and 158,364.58

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Solution

The fourth proportional to 438,847.34, 658,238.18 and 158,364.58 is: 237,535.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,847.34 : 658,238.18 = 158,364.58 : x
  2. Step 2: Convert to fraction form
    438,847.34/658,238.18 = 158,364.58/x
  3. Step 3: Cross multiply
    438,847.34x = 658,238.18 × 158,364.58
  4. Step 4: Simplify right side
    438,847.34x = 104,241,612,915.66
  5. Step 5: Solve for x
    x = 104,241,612,915.66/438,847.34
  6. Step 6: Final answer
    x = 237,535.02

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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.