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Finding the Fourth Proportional to 325,061.70, 487,592.55 and 207,255.30

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Solution

The fourth proportional to 325,061.70, 487,592.55 and 207,255.30 is: 310,882.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,061.70 : 487,592.55 = 207,255.30 : x
  2. Step 2: Convert to fraction form
    325,061.70/487,592.55 = 207,255.30/x
  3. Step 3: Cross multiply
    325,061.70x = 487,592.55 × 207,255.30
  4. Step 4: Simplify right side
    325,061.70x = 101,056,140,228.02
  5. Step 5: Solve for x
    x = 101,056,140,228.02/325,061.70
  6. Step 6: Final answer
    x = 310,882.95

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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.