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Finding the Fourth Proportional to 352,407.72, 486,331.50 and 191,269.56

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Solution

The fourth proportional to 352,407.72, 486,331.50 and 191,269.56 is: 263,956.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,407.72 : 486,331.50 = 191,269.56 : x
  2. Step 2: Convert to fraction form
    352,407.72/486,331.50 = 191,269.56/x
  3. Step 3: Cross multiply
    352,407.72x = 486,331.50 × 191,269.56
  4. Step 4: Simplify right side
    352,407.72x = 93,020,412,019.14
  5. Step 5: Solve for x
    x = 93,020,412,019.14/352,407.72
  6. Step 6: Final answer
    x = 263,956.79

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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.