Home / 681,105.47-1,021,686.96-201,334.37

Finding the Fourth Proportional to 681,105.47, 1,021,686.96 and 201,334.37

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Solution

The fourth proportional to 681,105.47, 1,021,686.96 and 201,334.37 is: 302,010.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,105.47 : 1,021,686.96 = 201,334.37 : x
  2. Step 2: Convert to fraction form
    681,105.47/1,021,686.96 = 201,334.37/x
  3. Step 3: Cross multiply
    681,105.47x = 1,021,686.96 × 201,334.37
  4. Step 4: Simplify right side
    681,105.47x = 205,700,700,428.82
  5. Step 5: Solve for x
    x = 205,700,700,428.82/681,105.47
  6. Step 6: Final answer
    x = 302,010.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.