Home / 281,126.44-387,723.54-200,528.20

Finding the Fourth Proportional to 281,126.44, 387,723.54 and 200,528.20

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Solution

The fourth proportional to 281,126.44, 387,723.54 and 200,528.20 is: 276,564.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,126.44 : 387,723.54 = 200,528.20 : x
  2. Step 2: Convert to fraction form
    281,126.44/387,723.54 = 200,528.20/x
  3. Step 3: Cross multiply
    281,126.44x = 387,723.54 × 200,528.20
  4. Step 4: Simplify right side
    281,126.44x = 77,749,503,573.83
  5. Step 5: Solve for x
    x = 77,749,503,573.83/281,126.44
  6. Step 6: Final answer
    x = 276,564.18

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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.