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Finding the Fourth Proportional to 576,369.81, 864,536.27 and 260,826.72

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Solution

The fourth proportional to 576,369.81, 864,536.27 and 260,826.72 is: 391,231.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,369.81 : 864,536.27 = 260,826.72 : x
  2. Step 2: Convert to fraction form
    576,369.81/864,536.27 = 260,826.72/x
  3. Step 3: Cross multiply
    576,369.81x = 864,536.27 × 260,826.72
  4. Step 4: Simplify right side
    576,369.81x = 225,494,159,625.13
  5. Step 5: Solve for x
    x = 225,494,159,625.13/576,369.81
  6. Step 6: Final answer
    x = 391,231.73

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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.