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Finding the Fourth Proportional to 448,863.25, 619,431.29 and 247,659.25

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Solution

The fourth proportional to 448,863.25, 619,431.29 and 247,659.25 is: 341,769.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,863.25 : 619,431.29 = 247,659.25 : x
  2. Step 2: Convert to fraction form
    448,863.25/619,431.29 = 247,659.25/x
  3. Step 3: Cross multiply
    448,863.25x = 619,431.29 × 247,659.25
  4. Step 4: Simplify right side
    448,863.25x = 153,407,888,707.93
  5. Step 5: Solve for x
    x = 153,407,888,707.93/448,863.25
  6. Step 6: Final answer
    x = 341,769.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.