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Finding the Fourth Proportional to 437,211.60, 655,817.40 and 170,785.30

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Solution

The fourth proportional to 437,211.60, 655,817.40 and 170,785.30 is: 256,177.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,211.60 : 655,817.40 = 170,785.30 : x
  2. Step 2: Convert to fraction form
    437,211.60/655,817.40 = 170,785.30/x
  3. Step 3: Cross multiply
    437,211.60x = 655,817.40 × 170,785.30
  4. Step 4: Simplify right side
    437,211.60x = 112,003,971,404.22
  5. Step 5: Solve for x
    x = 112,003,971,404.22/437,211.60
  6. Step 6: Final answer
    x = 256,177.95

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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.