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Finding the Fourth Proportional to 352,491.80, 486,439.31 and 191,346.96

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Solution

The fourth proportional to 352,491.80, 486,439.31 and 191,346.96 is: 264,059.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,491.80 : 486,439.31 = 191,346.96 : x
  2. Step 2: Convert to fraction form
    352,491.80/486,439.31 = 191,346.96/x
  3. Step 3: Cross multiply
    352,491.80x = 486,439.31 × 191,346.96
  4. Step 4: Simplify right side
    352,491.80x = 93,078,682,953.81
  5. Step 5: Solve for x
    x = 93,078,682,953.81/352,491.80
  6. Step 6: Final answer
    x = 264,059.14

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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.