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Finding the Fourth Proportional to 576,138.60, 864,207.90 and 482,826.60

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Solution

The fourth proportional to 576,138.60, 864,207.90 and 482,826.60 is: 724,239.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,138.60 : 864,207.90 = 482,826.60 : x
  2. Step 2: Convert to fraction form
    576,138.60/864,207.90 = 482,826.60/x
  3. Step 3: Cross multiply
    576,138.60x = 864,207.90 × 482,826.60
  4. Step 4: Simplify right side
    576,138.60x = 417,262,562,050.14
  5. Step 5: Solve for x
    x = 417,262,562,050.14/576,138.60
  6. Step 6: Final answer
    x = 724,239.90

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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.