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Finding the Fourth Proportional to 285,497.12, 394,170.90 and 183,568.36

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Solution

The fourth proportional to 285,497.12, 394,170.90 and 183,568.36 is: 253,443.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,497.12 : 394,170.90 = 183,568.36 : x
  2. Step 2: Convert to fraction form
    285,497.12/394,170.90 = 183,568.36/x
  3. Step 3: Cross multiply
    285,497.12x = 394,170.90 × 183,568.36
  4. Step 4: Simplify right side
    285,497.12x = 72,357,305,672.72
  5. Step 5: Solve for x
    x = 72,357,305,672.72/285,497.12
  6. Step 6: Final answer
    x = 253,443.21

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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.