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Finding the Fourth Proportional to 543,647.16, 814,278.42 and 385,395.84

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Solution

The fourth proportional to 543,647.16, 814,278.42 and 385,395.84 is: 577,248.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,647.16 : 814,278.42 = 385,395.84 : x
  2. Step 2: Convert to fraction form
    543,647.16/814,278.42 = 385,395.84/x
  3. Step 3: Cross multiply
    543,647.16x = 814,278.42 × 385,395.84
  4. Step 4: Simplify right side
    543,647.16x = 313,819,515,669.77
  5. Step 5: Solve for x
    x = 313,819,515,669.77/543,647.16
  6. Step 6: Final answer
    x = 577,248.51

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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.