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Finding the Fourth Proportional to 508,702.23, 701,983.31 and 301,979.46

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Solution

The fourth proportional to 508,702.23, 701,983.31 and 301,979.46 is: 416,716.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,702.23 : 701,983.31 = 301,979.46 : x
  2. Step 2: Convert to fraction form
    508,702.23/701,983.31 = 301,979.46/x
  3. Step 3: Cross multiply
    508,702.23x = 701,983.31 × 301,979.46
  4. Step 4: Simplify right side
    508,702.23x = 211,984,539,372.92
  5. Step 5: Solve for x
    x = 211,984,539,372.92/508,702.23
  6. Step 6: Final answer
    x = 416,716.36

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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.