Home / 621,122.12-931,453.98-221,656.04

Finding the Fourth Proportional to 621,122.12, 931,453.98 and 221,656.04

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Solution

The fourth proportional to 621,122.12, 931,453.98 and 221,656.04 is: 332,402.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,122.12 : 931,453.98 = 221,656.04 : x
  2. Step 2: Convert to fraction form
    621,122.12/931,453.98 = 221,656.04/x
  3. Step 3: Cross multiply
    621,122.12x = 931,453.98 × 221,656.04
  4. Step 4: Simplify right side
    621,122.12x = 206,462,400,649.04
  5. Step 5: Solve for x
    x = 206,462,400,649.04/621,122.12
  6. Step 6: Final answer
    x = 332,402.27

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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.