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Finding the Fourth Proportional to 308,660.16, 425,856.56 and 201,191.04

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Solution

The fourth proportional to 308,660.16, 425,856.56 and 201,191.04 is: 277,582.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,660.16 : 425,856.56 = 201,191.04 : x
  2. Step 2: Convert to fraction form
    308,660.16/425,856.56 = 201,191.04/x
  3. Step 3: Cross multiply
    308,660.16x = 425,856.56 × 201,191.04
  4. Step 4: Simplify right side
    308,660.16x = 85,678,524,197.22
  5. Step 5: Solve for x
    x = 85,678,524,197.22/308,660.16
  6. Step 6: Final answer
    x = 277,582.06

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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.