Home / 621,084.30-931,823.31-221,716.50

Finding the Fourth Proportional to 621,084.30, 931,823.31 and 221,716.50

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Solution

The fourth proportional to 621,084.30, 931,823.31 and 221,716.50 is: 332,645.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,084.30 : 931,823.31 = 221,716.50 : x
  2. Step 2: Convert to fraction form
    621,084.30/931,823.31 = 221,716.50/x
  3. Step 3: Cross multiply
    621,084.30x = 931,823.31 × 221,716.50
  4. Step 4: Simplify right side
    621,084.30x = 206,600,602,911.62
  5. Step 5: Solve for x
    x = 206,600,602,911.62/621,084.30
  6. Step 6: Final answer
    x = 332,645.03

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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.