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Finding the Fourth Proportional to 285,886.96, 394,265.84 and 178,466.96

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Solution

The fourth proportional to 285,886.96, 394,265.84 and 178,466.96 is: 246,123.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,886.96 : 394,265.84 = 178,466.96 : x
  2. Step 2: Convert to fraction form
    285,886.96/394,265.84 = 178,466.96/x
  3. Step 3: Cross multiply
    285,886.96x = 394,265.84 × 178,466.96
  4. Step 4: Simplify right side
    285,886.96x = 70,363,425,896.65
  5. Step 5: Solve for x
    x = 70,363,425,896.65/285,886.96
  6. Step 6: Final answer
    x = 246,123.24

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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.