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Finding the Fourth Proportional to 391,026.69, 586,550.22 and 124,786.83

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Solution

The fourth proportional to 391,026.69, 586,550.22 and 124,786.83 is: 187,183.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,026.69 : 586,550.22 = 124,786.83 : x
  2. Step 2: Convert to fraction form
    391,026.69/586,550.22 = 124,786.83/x
  3. Step 3: Cross multiply
    391,026.69x = 586,550.22 × 124,786.83
  4. Step 4: Simplify right side
    391,026.69x = 73,193,742,589.60
  5. Step 5: Solve for x
    x = 73,193,742,589.60/391,026.69
  6. Step 6: Final answer
    x = 187,183.50

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1.5x scale

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.