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Finding the Fourth Proportional to 612,235.85, 918,363.05 and 233,177.57

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Solution

The fourth proportional to 612,235.85, 918,363.05 and 233,177.57 is: 349,769.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,235.85 : 918,363.05 = 233,177.57 : x
  2. Step 2: Convert to fraction form
    612,235.85/918,363.05 = 233,177.57/x
  3. Step 3: Cross multiply
    612,235.85x = 918,363.05 × 233,177.57
  4. Step 4: Simplify right side
    612,235.85x = 214,141,658,619.09
  5. Step 5: Solve for x
    x = 214,141,658,619.09/612,235.85
  6. Step 6: Final answer
    x = 349,769.88

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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.