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Finding the Fourth Proportional to 544,671.10, 816,443.95 and 207,621.29

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Solution

The fourth proportional to 544,671.10, 816,443.95 and 207,621.29 is: 311,217.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,671.10 : 816,443.95 = 207,621.29 : x
  2. Step 2: Convert to fraction form
    544,671.10/816,443.95 = 207,621.29/x
  3. Step 3: Cross multiply
    544,671.10x = 816,443.95 × 207,621.29
  4. Step 4: Simplify right side
    544,671.10x = 169,511,146,111.70
  5. Step 5: Solve for x
    x = 169,511,146,111.70/544,671.10
  6. Step 6: Final answer
    x = 311,217.44

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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.