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Finding the Fourth Proportional to 325,676.70, 488,952.45 and 207,870.30

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Solution

The fourth proportional to 325,676.70, 488,952.45 and 207,870.30 is: 312,084.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,676.70 : 488,952.45 = 207,870.30 : x
  2. Step 2: Convert to fraction form
    325,676.70/488,952.45 = 207,870.30/x
  3. Step 3: Cross multiply
    325,676.70x = 488,952.45 × 207,870.30
  4. Step 4: Simplify right side
    325,676.70x = 101,638,692,467.24
  5. Step 5: Solve for x
    x = 101,638,692,467.24/325,676.70
  6. Step 6: Final answer
    x = 312,084.63

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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.