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Finding the Fourth Proportional to 352,453.28, 486,385.96 and 191,308.32

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Solution

The fourth proportional to 352,453.28, 486,385.96 and 191,308.32 is: 264,005.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,453.28 : 486,385.96 = 191,308.32 : x
  2. Step 2: Convert to fraction form
    352,453.28/486,385.96 = 191,308.32/x
  3. Step 3: Cross multiply
    352,453.28x = 486,385.96 × 191,308.32
  4. Step 4: Simplify right side
    352,453.28x = 93,049,680,879.19
  5. Step 5: Solve for x
    x = 93,049,680,879.19/352,453.28
  6. Step 6: Final answer
    x = 264,005.72

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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.