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Finding the Fourth Proportional to 352,420.22, 486,340.40 and 191,275.27

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Solution

The fourth proportional to 352,420.22, 486,340.40 and 191,275.27 is: 263,960.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,420.22 : 486,340.40 = 191,275.27 : x
  2. Step 2: Convert to fraction form
    352,420.22/486,340.40 = 191,275.27/x
  3. Step 3: Cross multiply
    352,420.22x = 486,340.40 × 191,275.27
  4. Step 4: Simplify right side
    352,420.22x = 93,024,887,933.83
  5. Step 5: Solve for x
    x = 93,024,887,933.83/352,420.22
  6. Step 6: Final answer
    x = 263,960.13

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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.