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Finding the Fourth Proportional to 376,445.30, 564,169.52 and 276,135.90

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Solution

The fourth proportional to 376,445.30, 564,169.52 and 276,135.90 is: 413,838.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,445.30 : 564,169.52 = 276,135.90 : x
  2. Step 2: Convert to fraction form
    376,445.30/564,169.52 = 276,135.90/x
  3. Step 3: Cross multiply
    376,445.30x = 564,169.52 × 276,135.90
  4. Step 4: Simplify right side
    376,445.30x = 155,787,458,157.77
  5. Step 5: Solve for x
    x = 155,787,458,157.77/376,445.30
  6. Step 6: Final answer
    x = 413,838.23

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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.