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Finding the Fourth Proportional to 620,777.41, 931,156.88 and 171,488.33

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Solution

The fourth proportional to 620,777.41, 931,156.88 and 171,488.33 is: 257,229.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,777.41 : 931,156.88 = 171,488.33 : x
  2. Step 2: Convert to fraction form
    620,777.41/931,156.88 = 171,488.33/x
  3. Step 3: Cross multiply
    620,777.41x = 931,156.88 × 171,488.33
  4. Step 4: Simplify right side
    620,777.41x = 159,682,536,314.74
  5. Step 5: Solve for x
    x = 159,682,536,314.74/620,777.41
  6. Step 6: Final answer
    x = 257,229.94

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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.