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Finding the Fourth Proportional to 329,353.07, 493,648.40 and 151,486.79

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Solution

The fourth proportional to 329,353.07, 493,648.40 and 151,486.79 is: 227,054.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,353.07 : 493,648.40 = 151,486.79 : x
  2. Step 2: Convert to fraction form
    329,353.07/493,648.40 = 151,486.79/x
  3. Step 3: Cross multiply
    329,353.07x = 493,648.40 × 151,486.79
  4. Step 4: Simplify right side
    329,353.07x = 74,781,211,765.83
  5. Step 5: Solve for x
    x = 74,781,211,765.83/329,353.07
  6. Step 6: Final answer
    x = 227,054.85

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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.