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Finding the Fourth Proportional to 518,009.52, 776,408 and 197,951.80

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Solution

The fourth proportional to 518,009.52, 776,408 and 197,951.80 is: 296,696.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,009.52 : 776,408 = 197,951.80 : x
  2. Step 2: Convert to fraction form
    518,009.52/776,408 = 197,951.80/x
  3. Step 3: Cross multiply
    518,009.52x = 776,408 × 197,951.80
  4. Step 4: Simplify right side
    518,009.52x = 153,691,361,134.40
  5. Step 5: Solve for x
    x = 153,691,361,134.40/518,009.52
  6. Step 6: Final answer
    x = 296,696.02

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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.