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Finding the Fourth Proportional to 611,974.19, 917,305.01 and 295,996.43

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Solution

The fourth proportional to 611,974.19, 917,305.01 and 295,996.43 is: 443,677.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,974.19 : 917,305.01 = 295,996.43 : x
  2. Step 2: Convert to fraction form
    611,974.19/917,305.01 = 295,996.43/x
  3. Step 3: Cross multiply
    611,974.19x = 917,305.01 × 295,996.43
  4. Step 4: Simplify right side
    611,974.19x = 271,519,006,701.13
  5. Step 5: Solve for x
    x = 271,519,006,701.13/611,974.19
  6. Step 6: Final answer
    x = 443,677.22

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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.