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Finding the Fourth Proportional to 371,590.80, 557,062.20 and 252,877.20

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Solution

The fourth proportional to 371,590.80, 557,062.20 and 252,877.20 is: 379,095.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,590.80 : 557,062.20 = 252,877.20 : x
  2. Step 2: Convert to fraction form
    371,590.80/557,062.20 = 252,877.20/x
  3. Step 3: Cross multiply
    371,590.80x = 557,062.20 × 252,877.20
  4. Step 4: Simplify right side
    371,590.80x = 140,868,329,361.84
  5. Step 5: Solve for x
    x = 140,868,329,361.84/371,590.80
  6. Step 6: Final answer
    x = 379,095.31

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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.