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Finding the Fourth Proportional to 612,233.33, 918,352.01 and 185,772.78

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Solution

The fourth proportional to 612,233.33, 918,352.01 and 185,772.78 is: 278,659.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,233.33 : 918,352.01 = 185,772.78 : x
  2. Step 2: Convert to fraction form
    612,233.33/918,352.01 = 185,772.78/x
  3. Step 3: Cross multiply
    612,233.33x = 918,352.01 × 185,772.78
  4. Step 4: Simplify right side
    612,233.33x = 170,604,804,987.42
  5. Step 5: Solve for x
    x = 170,604,804,987.42/612,233.33
  6. Step 6: Final answer
    x = 278,659.78

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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.