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Finding the Fourth Proportional to 543,776.87, 815,748.30 and 277,392.06

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Solution

The fourth proportional to 543,776.87, 815,748.30 and 277,392.06 is: 416,130.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,776.87 : 815,748.30 = 277,392.06 : x
  2. Step 2: Convert to fraction form
    543,776.87/815,748.30 = 277,392.06/x
  3. Step 3: Cross multiply
    543,776.87x = 815,748.30 × 277,392.06
  4. Step 4: Simplify right side
    543,776.87x = 226,282,101,378.50
  5. Step 5: Solve for x
    x = 226,282,101,378.50/543,776.87
  6. Step 6: Final answer
    x = 416,130.43

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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.