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Finding the Fourth Proportional to 487,713.28, 673,274.42 and 366,900.56

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Solution

The fourth proportional to 487,713.28, 673,274.42 and 366,900.56 is: 506,495.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,713.28 : 673,274.42 = 366,900.56 : x
  2. Step 2: Convert to fraction form
    487,713.28/673,274.42 = 366,900.56/x
  3. Step 3: Cross multiply
    487,713.28x = 673,274.42 × 366,900.56
  4. Step 4: Simplify right side
    487,713.28x = 247,024,761,731.68
  5. Step 5: Solve for x
    x = 247,024,761,731.68/487,713.28
  6. Step 6: Final answer
    x = 506,495.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.