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Finding the Fourth Proportional to 873,754.98, 1,311,103.31 and 368,666.03

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Solution

The fourth proportional to 873,754.98, 1,311,103.31 and 368,666.03 is: 553,197.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,754.98 : 1,311,103.31 = 368,666.03 : x
  2. Step 2: Convert to fraction form
    873,754.98/1,311,103.31 = 368,666.03/x
  3. Step 3: Cross multiply
    873,754.98x = 1,311,103.31 × 368,666.03
  4. Step 4: Simplify right side
    873,754.98x = 483,359,252,217.56
  5. Step 5: Solve for x
    x = 483,359,252,217.56/873,754.98
  6. Step 6: Final answer
    x = 553,197.71

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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.