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Finding the Fourth Proportional to 367,979.12, 507,825.59 and 206,833.67

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Solution

The fourth proportional to 367,979.12, 507,825.59 and 206,833.67 is: 285,438.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,979.12 : 507,825.59 = 206,833.67 : x
  2. Step 2: Convert to fraction form
    367,979.12/507,825.59 = 206,833.67/x
  3. Step 3: Cross multiply
    367,979.12x = 507,825.59 × 206,833.67
  4. Step 4: Simplify right side
    367,979.12x = 105,035,426,926.32
  5. Step 5: Solve for x
    x = 105,035,426,926.32/367,979.12
  6. Step 6: Final answer
    x = 285,438.56

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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.