Home / 621,177.98-931,787.68-171,861.20

Finding the Fourth Proportional to 621,177.98, 931,787.68 and 171,861.20

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Solution

The fourth proportional to 621,177.98, 931,787.68 and 171,861.20 is: 257,797.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,177.98 : 931,787.68 = 171,861.20 : x
  2. Step 2: Convert to fraction form
    621,177.98/931,787.68 = 171,861.20/x
  3. Step 3: Cross multiply
    621,177.98x = 931,787.68 × 171,861.20
  4. Step 4: Simplify right side
    621,177.98x = 160,138,148,830.02
  5. Step 5: Solve for x
    x = 160,138,148,830.02/621,177.98
  6. Step 6: Final answer
    x = 257,797.53

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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.