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Finding the Fourth Proportional to 502,490.54, 693,428.27 and 273,051.45

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Solution

The fourth proportional to 502,490.54, 693,428.27 and 273,051.45 is: 376,806.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,490.54 : 693,428.27 = 273,051.45 : x
  2. Step 2: Convert to fraction form
    502,490.54/693,428.27 = 273,051.45/x
  3. Step 3: Cross multiply
    502,490.54x = 693,428.27 × 273,051.45
  4. Step 4: Simplify right side
    502,490.54x = 189,341,593,229.23
  5. Step 5: Solve for x
    x = 189,341,593,229.23/502,490.54
  6. Step 6: Final answer
    x = 376,806.28

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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.