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Finding the Fourth Proportional to 293,807.61, 405,683.37 and 225,716.67

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Solution

The fourth proportional to 293,807.61, 405,683.37 and 225,716.67 is: 311,664.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,807.61 : 405,683.37 = 225,716.67 : x
  2. Step 2: Convert to fraction form
    293,807.61/405,683.37 = 225,716.67/x
  3. Step 3: Cross multiply
    293,807.61x = 405,683.37 × 225,716.67
  4. Step 4: Simplify right side
    293,807.61x = 91,569,499,350.78
  5. Step 5: Solve for x
    x = 91,569,499,350.78/293,807.61
  6. Step 6: Final answer
    x = 311,664.83

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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.