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Finding the Fourth Proportional to 312,088.20, 467,476.20 and 259,600.20

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Solution

The fourth proportional to 312,088.20, 467,476.20 and 259,600.20 is: 388,854.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,088.20 : 467,476.20 = 259,600.20 : x
  2. Step 2: Convert to fraction form
    312,088.20/467,476.20 = 259,600.20/x
  3. Step 3: Cross multiply
    312,088.20x = 467,476.20 × 259,600.20
  4. Step 4: Simplify right side
    312,088.20x = 121,356,915,015.24
  5. Step 5: Solve for x
    x = 121,356,915,015.24/312,088.20
  6. Step 6: Final answer
    x = 388,854.55

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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.