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Finding the Fourth Proportional to 328,944.04, 454,157.22 and 201,689.80

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Solution

The fourth proportional to 328,944.04, 454,157.22 and 201,689.80 is: 278,463.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,944.04 : 454,157.22 = 201,689.80 : x
  2. Step 2: Convert to fraction form
    328,944.04/454,157.22 = 201,689.80/x
  3. Step 3: Cross multiply
    328,944.04x = 454,157.22 × 201,689.80
  4. Step 4: Simplify right side
    328,944.04x = 91,598,878,870.36
  5. Step 5: Solve for x
    x = 91,598,878,870.36/328,944.04
  6. Step 6: Final answer
    x = 278,463.41

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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.