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Finding the Fourth Proportional to 606,431.20, 908,334.60 and 325,620.40

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Solution

The fourth proportional to 606,431.20, 908,334.60 and 325,620.40 is: 487,726.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,431.20 : 908,334.60 = 325,620.40 : x
  2. Step 2: Convert to fraction form
    606,431.20/908,334.60 = 325,620.40/x
  3. Step 3: Cross multiply
    606,431.20x = 908,334.60 × 325,620.40
  4. Step 4: Simplify right side
    606,431.20x = 295,772,275,785.84
  5. Step 5: Solve for x
    x = 295,772,275,785.84/606,431.20
  6. Step 6: Final answer
    x = 487,726.02

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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.