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Finding the Fourth Proportional to 388,879.67, 583,952.37 and 240,065.94

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Solution

The fourth proportional to 388,879.67, 583,952.37 and 240,065.94 is: 360,489.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,879.67 : 583,952.37 = 240,065.94 : x
  2. Step 2: Convert to fraction form
    388,879.67/583,952.37 = 240,065.94/x
  3. Step 3: Cross multiply
    388,879.67x = 583,952.37 × 240,065.94
  4. Step 4: Simplify right side
    388,879.67x = 140,187,074,619.28
  5. Step 5: Solve for x
    x = 140,187,074,619.28/388,879.67
  6. Step 6: Final answer
    x = 360,489.59

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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.