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Finding the Fourth Proportional to 566,388.67, 781,633.53 and 308,284.28

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Solution

The fourth proportional to 566,388.67, 781,633.53 and 308,284.28 is: 425,441.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,388.67 : 781,633.53 = 308,284.28 : x
  2. Step 2: Convert to fraction form
    566,388.67/781,633.53 = 308,284.28/x
  3. Step 3: Cross multiply
    566,388.67x = 781,633.53 × 308,284.28
  4. Step 4: Simplify right side
    566,388.67x = 240,965,330,019.91
  5. Step 5: Solve for x
    x = 240,965,330,019.91/566,388.67
  6. Step 6: Final answer
    x = 425,441.65

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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.