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Finding the Fourth Proportional to 618,766.66, 928,016.34 and 219,420.46

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Solution

The fourth proportional to 618,766.66, 928,016.34 and 219,420.46 is: 329,083.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,766.66 : 928,016.34 = 219,420.46 : x
  2. Step 2: Convert to fraction form
    618,766.66/928,016.34 = 219,420.46/x
  3. Step 3: Cross multiply
    618,766.66x = 928,016.34 × 219,420.46
  4. Step 4: Simplify right side
    618,766.66x = 203,625,772,210.32
  5. Step 5: Solve for x
    x = 203,625,772,210.32/618,766.66
  6. Step 6: Final answer
    x = 329,083.30

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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.