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Finding the Fourth Proportional to 352,437.06, 486,361.48 and 191,290.68

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Solution

The fourth proportional to 352,437.06, 486,361.48 and 191,290.68 is: 263,980.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,437.06 : 486,361.48 = 191,290.68 : x
  2. Step 2: Convert to fraction form
    352,437.06/486,361.48 = 191,290.68/x
  3. Step 3: Cross multiply
    352,437.06x = 486,361.48 × 191,290.68
  4. Step 4: Simplify right side
    352,437.06x = 93,036,418,235.01
  5. Step 5: Solve for x
    x = 93,036,418,235.01/352,437.06
  6. Step 6: Final answer
    x = 263,980.24

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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.