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Finding the Fourth Proportional to 381,881.80, 572,822.70 and 381,881.80

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Solution

The fourth proportional to 381,881.80, 572,822.70 and 381,881.80 is: 572,822.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,881.80 : 572,822.70 = 381,881.80 : x
  2. Step 2: Convert to fraction form
    381,881.80/572,822.70 = 381,881.80/x
  3. Step 3: Cross multiply
    381,881.80x = 572,822.70 × 381,881.80
  4. Step 4: Simplify right side
    381,881.80x = 218,750,563,756.86
  5. Step 5: Solve for x
    x = 218,750,563,756.86/381,881.80
  6. Step 6: Final answer
    x = 572,822.70

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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.