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Finding the Fourth Proportional to 487,628.82, 730,944.54 and 167,684.76

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Solution

The fourth proportional to 487,628.82, 730,944.54 and 167,684.76 is: 251,355.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,628.82 : 730,944.54 = 167,684.76 : x
  2. Step 2: Convert to fraction form
    487,628.82/730,944.54 = 167,684.76/x
  3. Step 3: Cross multiply
    487,628.82x = 730,944.54 × 167,684.76
  4. Step 4: Simplify right side
    487,628.82x = 122,568,259,763.21
  5. Step 5: Solve for x
    x = 122,568,259,763.21/487,628.82
  6. Step 6: Final answer
    x = 251,355.65

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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.