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Finding the Fourth Proportional to 437,063.60, 655,235.40 and 197,193.20

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Solution

The fourth proportional to 437,063.60, 655,235.40 and 197,193.20 is: 295,627.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,063.60 : 655,235.40 = 197,193.20 : x
  2. Step 2: Convert to fraction form
    437,063.60/655,235.40 = 197,193.20/x
  3. Step 3: Cross multiply
    437,063.60x = 655,235.40 × 197,193.20
  4. Step 4: Simplify right side
    437,063.60x = 129,207,965,279.28
  5. Step 5: Solve for x
    x = 129,207,965,279.28/437,063.60
  6. Step 6: Final answer
    x = 295,627.38

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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.