Home / 621,255.62-931,652.69-216,343.85

Finding the Fourth Proportional to 621,255.62, 931,652.69 and 216,343.85

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Solution

The fourth proportional to 621,255.62, 931,652.69 and 216,343.85 is: 324,435.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,255.62 : 931,652.69 = 216,343.85 : x
  2. Step 2: Convert to fraction form
    621,255.62/931,652.69 = 216,343.85/x
  3. Step 3: Cross multiply
    621,255.62x = 931,652.69 × 216,343.85
  4. Step 4: Simplify right side
    621,255.62x = 201,557,324,077.47
  5. Step 5: Solve for x
    x = 201,557,324,077.47/621,255.62
  6. Step 6: Final answer
    x = 324,435.42

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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.