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Finding the Fourth Proportional to 317,179.10, 437,676.54 and 189,851.96

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Solution

The fourth proportional to 317,179.10, 437,676.54 and 189,851.96 is: 261,977.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,179.10 : 437,676.54 = 189,851.96 : x
  2. Step 2: Convert to fraction form
    317,179.10/437,676.54 = 189,851.96/x
  3. Step 3: Cross multiply
    317,179.10x = 437,676.54 × 189,851.96
  4. Step 4: Simplify right side
    317,179.10x = 83,093,748,965.02
  5. Step 5: Solve for x
    x = 83,093,748,965.02/317,179.10
  6. Step 6: Final answer
    x = 261,977.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.