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Finding the Fourth Proportional to 352,709.71, 486,745.22 and 191,564.88

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Solution

The fourth proportional to 352,709.71, 486,745.22 and 191,564.88 is: 264,362.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,709.71 : 486,745.22 = 191,564.88 : x
  2. Step 2: Convert to fraction form
    352,709.71/486,745.22 = 191,564.88/x
  3. Step 3: Cross multiply
    352,709.71x = 486,745.22 × 191,564.88
  4. Step 4: Simplify right side
    352,709.71x = 93,243,289,659.87
  5. Step 5: Solve for x
    x = 93,243,289,659.87/352,709.71
  6. Step 6: Final answer
    x = 264,362.70

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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.