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Finding the Fourth Proportional to 576,512.16, 864,300.78 and 239,804.70

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Solution

The fourth proportional to 576,512.16, 864,300.78 and 239,804.70 is: 359,512.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,512.16 : 864,300.78 = 239,804.70 : x
  2. Step 2: Convert to fraction form
    576,512.16/864,300.78 = 239,804.70/x
  3. Step 3: Cross multiply
    576,512.16x = 864,300.78 × 239,804.70
  4. Step 4: Simplify right side
    576,512.16x = 207,263,389,257.67
  5. Step 5: Solve for x
    x = 207,263,389,257.67/576,512.16
  6. Step 6: Final answer
    x = 359,512.61

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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.