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Finding the Fourth Proportional to 262,608.75, 393,913.13 and 65,616.75

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Solution

The fourth proportional to 262,608.75, 393,913.13 and 65,616.75 is: 98,425.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,608.75 : 393,913.13 = 65,616.75 : x
  2. Step 2: Convert to fraction form
    262,608.75/393,913.13 = 65,616.75/x
  3. Step 3: Cross multiply
    262,608.75x = 393,913.13 × 65,616.75
  4. Step 4: Simplify right side
    262,608.75x = 25,847,299,044.84
  5. Step 5: Solve for x
    x = 25,847,299,044.84/262,608.75
  6. Step 6: Final answer
    x = 98,425.13

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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.