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Finding the Fourth Proportional to 341,243.20, 511,864.80 and 322,811.20

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Solution

The fourth proportional to 341,243.20, 511,864.80 and 322,811.20 is: 484,216.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,243.20 : 511,864.80 = 322,811.20 : x
  2. Step 2: Convert to fraction form
    341,243.20/511,864.80 = 322,811.20/x
  3. Step 3: Cross multiply
    341,243.20x = 511,864.80 × 322,811.20
  4. Step 4: Simplify right side
    341,243.20x = 165,235,690,325.76
  5. Step 5: Solve for x
    x = 165,235,690,325.76/341,243.20
  6. Step 6: Final answer
    x = 484,216.80

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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.