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Finding the Fourth Proportional to 347,652.96, 479,761.28 and 188,676.96

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Solution

The fourth proportional to 347,652.96, 479,761.28 and 188,676.96 is: 260,374.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,652.96 : 479,761.28 = 188,676.96 : x
  2. Step 2: Convert to fraction form
    347,652.96/479,761.28 = 188,676.96/x
  3. Step 3: Cross multiply
    347,652.96x = 479,761.28 × 188,676.96
  4. Step 4: Simplify right side
    347,652.96x = 90,519,899,836.11
  5. Step 5: Solve for x
    x = 90,519,899,836.11/347,652.96
  6. Step 6: Final answer
    x = 260,374.31

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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.