Home / 621,172.97-931,780.17-171,856.19

Finding the Fourth Proportional to 621,172.97, 931,780.17 and 171,856.19

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Solution

The fourth proportional to 621,172.97, 931,780.17 and 171,856.19 is: 257,790.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,172.97 : 931,780.17 = 171,856.19 : x
  2. Step 2: Convert to fraction form
    621,172.97/931,780.17 = 171,856.19/x
  3. Step 3: Cross multiply
    621,172.97x = 931,780.17 × 171,856.19
  4. Step 4: Simplify right side
    621,172.97x = 160,132,189,933.75
  5. Step 5: Solve for x
    x = 160,132,189,933.75/621,172.97
  6. Step 6: Final answer
    x = 257,790.02

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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.