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Finding the Fourth Proportional to 3,169,981.92, 4,754,956.48 and 773,839.20

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Solution

The fourth proportional to 3,169,981.92, 4,754,956.48 and 773,839.20 is: 1,160,754.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,169,981.92 : 4,754,956.48 = 773,839.20 : x
  2. Step 2: Convert to fraction form
    3,169,981.92/4,754,956.48 = 773,839.20/x
  3. Step 3: Cross multiply
    3,169,981.92x = 4,754,956.48 × 773,839.20
  4. Step 4: Simplify right side
    3,169,981.92x = 3,679,571,718,518.02
  5. Step 5: Solve for x
    x = 3,679,571,718,518.02/3,169,981.92
  6. Step 6: Final answer
    x = 1,160,754.80

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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.