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Finding the Fourth Proportional to 612,222.57, 918,343.17 and 233,164.27

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Solution

The fourth proportional to 612,222.57, 918,343.17 and 233,164.27 is: 349,749.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,222.57 : 918,343.17 = 233,164.27 : x
  2. Step 2: Convert to fraction form
    612,222.57/918,343.17 = 233,164.27/x
  3. Step 3: Cross multiply
    612,222.57x = 918,343.17 × 233,164.27
  4. Step 4: Simplify right side
    612,222.57x = 214,124,815,990.47
  5. Step 5: Solve for x
    x = 214,124,815,990.47/612,222.57
  6. Step 6: Final answer
    x = 349,749.95

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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.