Home / 621,172.16-931,778.96-171,855.40

Finding the Fourth Proportional to 621,172.16, 931,778.96 and 171,855.40

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Solution

The fourth proportional to 621,172.16, 931,778.96 and 171,855.40 is: 257,788.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,172.16 : 931,778.96 = 171,855.40 : x
  2. Step 2: Convert to fraction form
    621,172.16/931,778.96 = 171,855.40/x
  3. Step 3: Cross multiply
    621,172.16x = 931,778.96 × 171,855.40
  4. Step 4: Simplify right side
    621,172.16x = 160,131,245,882.38
  5. Step 5: Solve for x
    x = 160,131,245,882.38/621,172.16
  6. Step 6: Final answer
    x = 257,788.83

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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.