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Finding the Fourth Proportional to 1,147,503.05, 1,719,679.92 and 726,024.41

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Solution

The fourth proportional to 1,147,503.05, 1,719,679.92 and 726,024.41 is: 1,088,040.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,503.05 : 1,719,679.92 = 726,024.41 : x
  2. Step 2: Convert to fraction form
    1,147,503.05/1,719,679.92 = 726,024.41/x
  3. Step 3: Cross multiply
    1,147,503.05x = 1,719,679.92 × 726,024.41
  4. Step 4: Simplify right side
    1,147,503.05x = 1,248,529,599,306.85
  5. Step 5: Solve for x
    x = 1,248,529,599,306.85/1,147,503.05
  6. Step 6: Final answer
    x = 1,088,040.33

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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.