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Finding the Fourth Proportional to 304,843.88, 420,644.66 and 175,787.12

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Solution

The fourth proportional to 304,843.88, 420,644.66 and 175,787.12 is: 242,563.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,843.88 : 420,644.66 = 175,787.12 : x
  2. Step 2: Convert to fraction form
    304,843.88/420,644.66 = 175,787.12/x
  3. Step 3: Cross multiply
    304,843.88x = 420,644.66 × 175,787.12
  4. Step 4: Simplify right side
    304,843.88x = 73,943,913,324.78
  5. Step 5: Solve for x
    x = 73,943,913,324.78/304,843.88
  6. Step 6: Final answer
    x = 242,563.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.