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Finding the Fourth Proportional to 481,780.48, 722,410.08 and 382,578.88

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Solution

The fourth proportional to 481,780.48, 722,410.08 and 382,578.88 is: 573,661.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,780.48 : 722,410.08 = 382,578.88 : x
  2. Step 2: Convert to fraction form
    481,780.48/722,410.08 = 382,578.88/x
  3. Step 3: Cross multiply
    481,780.48x = 722,410.08 × 382,578.88
  4. Step 4: Simplify right side
    481,780.48x = 276,378,839,307.11
  5. Step 5: Solve for x
    x = 276,378,839,307.11/481,780.48
  6. Step 6: Final answer
    x = 573,661.35

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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.