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Finding the Fourth Proportional to 285,717.92, 394,330.81 and 176,857.16

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Solution

The fourth proportional to 285,717.92, 394,330.81 and 176,857.16 is: 244,087.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,717.92 : 394,330.81 = 176,857.16 : x
  2. Step 2: Convert to fraction form
    285,717.92/394,330.81 = 176,857.16/x
  3. Step 3: Cross multiply
    285,717.92x = 394,330.81 × 176,857.16
  4. Step 4: Simplify right side
    285,717.92x = 69,740,227,157.10
  5. Step 5: Solve for x
    x = 69,740,227,157.10/285,717.92
  6. Step 6: Final answer
    x = 244,087.69

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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.