Home / 621,140.60-931,492.20-221,794.40

Finding the Fourth Proportional to 621,140.60, 931,492.20 and 221,794.40

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Solution

The fourth proportional to 621,140.60, 931,492.20 and 221,794.40 is: 332,613.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,140.60 : 931,492.20 = 221,794.40 : x
  2. Step 2: Convert to fraction form
    621,140.60/931,492.20 = 221,794.40/x
  3. Step 3: Cross multiply
    621,140.60x = 931,492.20 × 221,794.40
  4. Step 4: Simplify right side
    621,140.60x = 206,599,753,603.68
  5. Step 5: Solve for x
    x = 206,599,753,603.68/621,140.60
  6. Step 6: Final answer
    x = 332,613.51

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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.