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Finding the Fourth Proportional to 381,956.60, 573,124.98 and 289,032.44

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Solution

The fourth proportional to 381,956.60, 573,124.98 and 289,032.44 is: 433,692.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,956.60 : 573,124.98 = 289,032.44 : x
  2. Step 2: Convert to fraction form
    381,956.60/573,124.98 = 289,032.44/x
  3. Step 3: Cross multiply
    381,956.60x = 573,124.98 × 289,032.44
  4. Step 4: Simplify right side
    381,956.60x = 165,651,711,394.35
  5. Step 5: Solve for x
    x = 165,651,711,394.35/381,956.60
  6. Step 6: Final answer
    x = 433,692.50

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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.