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Finding the Fourth Proportional to 500,848.64, 691,169.51 and 271,406.82

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Solution

The fourth proportional to 500,848.64, 691,169.51 and 271,406.82 is: 374,540.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,848.64 : 691,169.51 = 271,406.82 : x
  2. Step 2: Convert to fraction form
    500,848.64/691,169.51 = 271,406.82/x
  3. Step 3: Cross multiply
    500,848.64x = 691,169.51 × 271,406.82
  4. Step 4: Simplify right side
    500,848.64x = 187,588,119,468.58
  5. Step 5: Solve for x
    x = 187,588,119,468.58/500,848.64
  6. Step 6: Final answer
    x = 374,540.54

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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.