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Finding the Fourth Proportional to 3,224,821.88, 4,837,932.66 and 980,901.56

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Solution

The fourth proportional to 3,224,821.88, 4,837,932.66 and 980,901.56 is: 1,471,565.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,224,821.88 : 4,837,932.66 = 980,901.56 : x
  2. Step 2: Convert to fraction form
    3,224,821.88/4,837,932.66 = 980,901.56/x
  3. Step 3: Cross multiply
    3,224,821.88x = 4,837,932.66 × 980,901.56
  4. Step 4: Simplify right side
    3,224,821.88x = 4,745,535,709,142.16
  5. Step 5: Solve for x
    x = 4,745,535,709,142.16/3,224,821.88
  6. Step 6: Final answer
    x = 1,471,565.22

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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.