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Finding the Fourth Proportional to 620,595.59, 930,874.77 and 171,343.88

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Solution

The fourth proportional to 620,595.59, 930,874.77 and 171,343.88 is: 257,010.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,595.59 : 930,874.77 = 171,343.88 : x
  2. Step 2: Convert to fraction form
    620,595.59/930,874.77 = 171,343.88/x
  3. Step 3: Cross multiply
    620,595.59x = 930,874.77 × 171,343.88
  4. Step 4: Simplify right side
    620,595.59x = 159,499,690,231.53
  5. Step 5: Solve for x
    x = 159,499,690,231.53/620,595.59
  6. Step 6: Final answer
    x = 257,010.68

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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.