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Finding the Fourth Proportional to 427,448.78, 589,861.88 and 246,167.54

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Solution

The fourth proportional to 427,448.78, 589,861.88 and 246,167.54 is: 339,701.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,448.78 : 589,861.88 = 246,167.54 : x
  2. Step 2: Convert to fraction form
    427,448.78/589,861.88 = 246,167.54/x
  3. Step 3: Cross multiply
    427,448.78x = 589,861.88 × 246,167.54
  4. Step 4: Simplify right side
    427,448.78x = 145,204,843,759.23
  5. Step 5: Solve for x
    x = 145,204,843,759.23/427,448.78
  6. Step 6: Final answer
    x = 339,701.16

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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.