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Finding the Fourth Proportional to 374,019.70, 561,029.55 and 262,045.30

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Solution

The fourth proportional to 374,019.70, 561,029.55 and 262,045.30 is: 393,067.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,019.70 : 561,029.55 = 262,045.30 : x
  2. Step 2: Convert to fraction form
    374,019.70/561,029.55 = 262,045.30/x
  3. Step 3: Cross multiply
    374,019.70x = 561,029.55 × 262,045.30
  4. Step 4: Simplify right side
    374,019.70x = 147,015,156,738.62
  5. Step 5: Solve for x
    x = 147,015,156,738.62/374,019.70
  6. Step 6: Final answer
    x = 393,067.95

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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.