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Finding the Fourth Proportional to 352,544.70, 486,512.01 and 191,399.66

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Solution

The fourth proportional to 352,544.70, 486,512.01 and 191,399.66 is: 264,131.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,544.70 : 486,512.01 = 191,399.66 : x
  2. Step 2: Convert to fraction form
    352,544.70/486,512.01 = 191,399.66/x
  3. Step 3: Cross multiply
    352,544.70x = 486,512.01 × 191,399.66
  4. Step 4: Simplify right side
    352,544.70x = 93,118,230,867.36
  5. Step 5: Solve for x
    x = 93,118,230,867.36/352,544.70
  6. Step 6: Final answer
    x = 264,131.70

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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.