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Finding the Fourth Proportional to 579,093.80, 866,951.10 and 413,205.80

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Solution

The fourth proportional to 579,093.80, 866,951.10 and 413,205.80 is: 618,603.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,093.80 : 866,951.10 = 413,205.80 : x
  2. Step 2: Convert to fraction form
    579,093.80/866,951.10 = 413,205.80/x
  3. Step 3: Cross multiply
    579,093.80x = 866,951.10 × 413,205.80
  4. Step 4: Simplify right side
    579,093.80x = 358,229,222,836.38
  5. Step 5: Solve for x
    x = 358,229,222,836.38/579,093.80
  6. Step 6: Final answer
    x = 618,603.11

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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.