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Finding the Fourth Proportional to 523,991.42, 786,140.22 and 168,997.58

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Solution

The fourth proportional to 523,991.42, 786,140.22 and 168,997.58 is: 253,545.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,991.42 : 786,140.22 = 168,997.58 : x
  2. Step 2: Convert to fraction form
    523,991.42/786,140.22 = 168,997.58/x
  3. Step 3: Cross multiply
    523,991.42x = 786,140.22 × 168,997.58
  4. Step 4: Simplify right side
    523,991.42x = 132,855,794,720.67
  5. Step 5: Solve for x
    x = 132,855,794,720.67/523,991.42
  6. Step 6: Final answer
    x = 253,545.74

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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.