Home / 621,033.64-931,747.28-221,665.56

Finding the Fourth Proportional to 621,033.64, 931,747.28 and 221,665.56

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Solution

The fourth proportional to 621,033.64, 931,747.28 and 221,665.56 is: 332,568.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,033.64 : 931,747.28 = 221,665.56 : x
  2. Step 2: Convert to fraction form
    621,033.64/931,747.28 = 221,665.56/x
  3. Step 3: Cross multiply
    621,033.64x = 931,747.28 × 221,665.56
  4. Step 4: Simplify right side
    621,033.64x = 206,536,282,599.68
  5. Step 5: Solve for x
    x = 206,536,282,599.68/621,033.64
  6. Step 6: Final answer
    x = 332,568.59

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1.5x scale

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.