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Finding the Fourth Proportional to 508,227.18, 701,335.71 and 281,893.74

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Solution

The fourth proportional to 508,227.18, 701,335.71 and 281,893.74 is: 389,003.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,227.18 : 701,335.71 = 281,893.74 : x
  2. Step 2: Convert to fraction form
    508,227.18/701,335.71 = 281,893.74/x
  3. Step 3: Cross multiply
    508,227.18x = 701,335.71 × 281,893.74
  4. Step 4: Simplify right side
    508,227.18x = 197,702,146,287.46
  5. Step 5: Solve for x
    x = 197,702,146,287.46/508,227.18
  6. Step 6: Final answer
    x = 389,003.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.