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Finding the Fourth Proportional to 325,715.90, 488,557.65 and 167,960.30

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Solution

The fourth proportional to 325,715.90, 488,557.65 and 167,960.30 is: 251,932.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,715.90 : 488,557.65 = 167,960.30 : x
  2. Step 2: Convert to fraction form
    325,715.90/488,557.65 = 167,960.30/x
  3. Step 3: Cross multiply
    325,715.90x = 488,557.65 × 167,960.30
  4. Step 4: Simplify right side
    325,715.90x = 82,058,289,461.30
  5. Step 5: Solve for x
    x = 82,058,289,461.30/325,715.90
  6. Step 6: Final answer
    x = 251,932.10

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1.5x scale

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.