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Finding the Fourth Proportional to 352,406.72, 486,330.12 and 191,268.56

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Solution

The fourth proportional to 352,406.72, 486,330.12 and 191,268.56 is: 263,955.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,406.72 : 486,330.12 = 191,268.56 : x
  2. Step 2: Convert to fraction form
    352,406.72/486,330.12 = 191,268.56/x
  3. Step 3: Cross multiply
    352,406.72x = 486,330.12 × 191,268.56
  4. Step 4: Simplify right side
    352,406.72x = 93,019,661,737.03
  5. Step 5: Solve for x
    x = 93,019,661,737.03/352,406.72
  6. Step 6: Final answer
    x = 263,955.41

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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.