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Finding the Fourth Proportional to 259,489.58, 357,564.17 and 191,398.75

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Solution

The fourth proportional to 259,489.58, 357,564.17 and 191,398.75 is: 263,738.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,489.58 : 357,564.17 = 191,398.75 : x
  2. Step 2: Convert to fraction form
    259,489.58/357,564.17 = 191,398.75/x
  3. Step 3: Cross multiply
    259,489.58x = 357,564.17 × 191,398.75
  4. Step 4: Simplify right side
    259,489.58x = 68,437,334,767.37
  5. Step 5: Solve for x
    x = 68,437,334,767.37/259,489.58
  6. Step 6: Final answer
    x = 263,738.28

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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.