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Finding the Fourth Proportional to 352,412.81, 486,330.15 and 191,267.86

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Solution

The fourth proportional to 352,412.81, 486,330.15 and 191,267.86 is: 263,949.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,412.81 : 486,330.15 = 191,267.86 : x
  2. Step 2: Convert to fraction form
    352,412.81/486,330.15 = 191,267.86/x
  3. Step 3: Cross multiply
    352,412.81x = 486,330.15 × 191,267.86
  4. Step 4: Simplify right side
    352,412.81x = 93,019,327,043.98
  5. Step 5: Solve for x
    x = 93,019,327,043.98/352,412.81
  6. Step 6: Final answer
    x = 263,949.90

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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.