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Finding the Fourth Proportional to 416,979.32, 625,469 and 167,603

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Solution

The fourth proportional to 416,979.32, 625,469 and 167,603 is: 251,404.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,979.32 : 625,469 = 167,603 : x
  2. Step 2: Convert to fraction form
    416,979.32/625,469 = 167,603/x
  3. Step 3: Cross multiply
    416,979.32x = 625,469 × 167,603
  4. Step 4: Simplify right side
    416,979.32x = 104,830,480,807
  5. Step 5: Solve for x
    x = 104,830,480,807/416,979.32
  6. Step 6: Final answer
    x = 251,404.51

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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.