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Finding the Fourth Proportional to 536,143.25, 803,978.71 and 251,914.66

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Solution

The fourth proportional to 536,143.25, 803,978.71 and 251,914.66 is: 377,761.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,143.25 : 803,978.71 = 251,914.66 : x
  2. Step 2: Convert to fraction form
    536,143.25/803,978.71 = 251,914.66/x
  3. Step 3: Cross multiply
    536,143.25x = 803,978.71 × 251,914.66
  4. Step 4: Simplify right side
    536,143.25x = 202,534,022,154.18
  5. Step 5: Solve for x
    x = 202,534,022,154.18/536,143.25
  6. Step 6: Final answer
    x = 377,761.02

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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.