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Finding the Fourth Proportional to 382,135.80, 573,203.70 and 376,230.90

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Solution

The fourth proportional to 382,135.80, 573,203.70 and 376,230.90 is: 564,346.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,135.80 : 573,203.70 = 376,230.90 : x
  2. Step 2: Convert to fraction form
    382,135.80/573,203.70 = 376,230.90/x
  3. Step 3: Cross multiply
    382,135.80x = 573,203.70 × 376,230.90
  4. Step 4: Simplify right side
    382,135.80x = 215,656,943,934.33
  5. Step 5: Solve for x
    x = 215,656,943,934.33/382,135.80
  6. Step 6: Final answer
    x = 564,346.35

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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.