Home / 621,087.20-931,827.63-221,719.13

Finding the Fourth Proportional to 621,087.20, 931,827.63 and 221,719.13

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Solution

The fourth proportional to 621,087.20, 931,827.63 and 221,719.13 is: 332,648.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,087.20 : 931,827.63 = 221,719.13 : x
  2. Step 2: Convert to fraction form
    621,087.20/931,827.63 = 221,719.13/x
  3. Step 3: Cross multiply
    621,087.20x = 931,827.63 × 221,719.13
  4. Step 4: Simplify right side
    621,087.20x = 206,604,006,774.42
  5. Step 5: Solve for x
    x = 206,604,006,774.42/621,087.20
  6. Step 6: Final answer
    x = 332,648.96

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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.