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Finding the Fourth Proportional to 374,874.80, 561,690.12 and 263,833.52

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Solution

The fourth proportional to 374,874.80, 561,690.12 and 263,833.52 is: 395,312.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,874.80 : 561,690.12 = 263,833.52 : x
  2. Step 2: Convert to fraction form
    374,874.80/561,690.12 = 263,833.52/x
  3. Step 3: Cross multiply
    374,874.80x = 561,690.12 × 263,833.52
  4. Step 4: Simplify right side
    374,874.80x = 148,192,681,508.82
  5. Step 5: Solve for x
    x = 148,192,681,508.82/374,874.80
  6. Step 6: Final answer
    x = 395,312.47

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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.