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Finding the Fourth Proportional to 611,884.80, 916,930.80 and 548,704.80

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Solution

The fourth proportional to 611,884.80, 916,930.80 and 548,704.80 is: 822,253.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,884.80 : 916,930.80 = 548,704.80 : x
  2. Step 2: Convert to fraction form
    611,884.80/916,930.80 = 548,704.80/x
  3. Step 3: Cross multiply
    611,884.80x = 916,930.80 × 548,704.80
  4. Step 4: Simplify right side
    611,884.80x = 503,124,331,227.84
  5. Step 5: Solve for x
    x = 503,124,331,227.84/611,884.80
  6. Step 6: Final answer
    x = 822,253.36

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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.