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Finding the Fourth Proportional to 285,997.56, 394,669.12 and 156,935.63

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Solution

The fourth proportional to 285,997.56, 394,669.12 and 156,935.63 is: 216,567.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,997.56 : 394,669.12 = 156,935.63 : x
  2. Step 2: Convert to fraction form
    285,997.56/394,669.12 = 156,935.63/x
  3. Step 3: Cross multiply
    285,997.56x = 394,669.12 × 156,935.63
  4. Step 4: Simplify right side
    285,997.56x = 61,937,647,583.08
  5. Step 5: Solve for x
    x = 61,937,647,583.08/285,997.56
  6. Step 6: Final answer
    x = 216,567.05

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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.