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Finding the Fourth Proportional to 576,380.82, 864,552.78 and 260,837.70

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Solution

The fourth proportional to 576,380.82, 864,552.78 and 260,837.70 is: 391,248.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,380.82 : 864,552.78 = 260,837.70 : x
  2. Step 2: Convert to fraction form
    576,380.82/864,552.78 = 260,837.70/x
  3. Step 3: Cross multiply
    576,380.82x = 864,552.78 × 260,837.70
  4. Step 4: Simplify right side
    576,380.82x = 225,507,958,663.81
  5. Step 5: Solve for x
    x = 225,507,958,663.81/576,380.82
  6. Step 6: Final answer
    x = 391,248.20

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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.