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Finding the Fourth Proportional to 606,130.72, 836,257.26 and 391,415.92

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Solution

The fourth proportional to 606,130.72, 836,257.26 and 391,415.92 is: 540,022.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,130.72 : 836,257.26 = 391,415.92 : x
  2. Step 2: Convert to fraction form
    606,130.72/836,257.26 = 391,415.92/x
  3. Step 3: Cross multiply
    606,130.72x = 836,257.26 × 391,415.92
  4. Step 4: Simplify right side
    606,130.72x = 327,324,404,779.58
  5. Step 5: Solve for x
    x = 327,324,404,779.58/606,130.72
  6. Step 6: Final answer
    x = 540,022.79

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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.