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Finding the Fourth Proportional to 543,222.60, 816,062.70 and 377,334.60

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Solution

The fourth proportional to 543,222.60, 816,062.70 and 377,334.60 is: 566,855.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,222.60 : 816,062.70 = 377,334.60 : x
  2. Step 2: Convert to fraction form
    543,222.60/816,062.70 = 377,334.60/x
  3. Step 3: Cross multiply
    543,222.60x = 816,062.70 × 377,334.60
  4. Step 4: Simplify right side
    543,222.60x = 307,928,692,479.42
  5. Step 5: Solve for x
    x = 307,928,692,479.42/543,222.60
  6. Step 6: Final answer
    x = 566,855.45

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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.