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Finding the Fourth Proportional to 352,365.57, 486,264.79 and 191,220.61

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Solution

The fourth proportional to 352,365.57, 486,264.79 and 191,220.61 is: 263,884.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,365.57 : 486,264.79 = 191,220.61 : x
  2. Step 2: Convert to fraction form
    352,365.57/486,264.79 = 191,220.61/x
  3. Step 3: Cross multiply
    352,365.57x = 486,264.79 × 191,220.61
  4. Step 4: Simplify right side
    352,365.57x = 92,983,849,765.32
  5. Step 5: Solve for x
    x = 92,983,849,765.32/352,365.57
  6. Step 6: Final answer
    x = 263,884.61

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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.