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Finding the Fourth Proportional to 325,008.10, 487,512.15 and 269,712.10

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Solution

The fourth proportional to 325,008.10, 487,512.15 and 269,712.10 is: 404,568.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,008.10 : 487,512.15 = 269,712.10 : x
  2. Step 2: Convert to fraction form
    325,008.10/487,512.15 = 269,712.10/x
  3. Step 3: Cross multiply
    325,008.10x = 487,512.15 × 269,712.10
  4. Step 4: Simplify right side
    325,008.10x = 131,487,925,752.02
  5. Step 5: Solve for x
    x = 131,487,925,752.02/325,008.10
  6. Step 6: Final answer
    x = 404,568.15

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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.