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Finding the Fourth Proportional to 502,706.25, 693,734.63 and 276,351.75

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Solution

The fourth proportional to 502,706.25, 693,734.63 and 276,351.75 is: 381,365.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,706.25 : 693,734.63 = 276,351.75 : x
  2. Step 2: Convert to fraction form
    502,706.25/693,734.63 = 276,351.75/x
  3. Step 3: Cross multiply
    502,706.25x = 693,734.63 × 276,351.75
  4. Step 4: Simplify right side
    502,706.25x = 191,714,777,654.34
  5. Step 5: Solve for x
    x = 191,714,777,654.34/502,706.25
  6. Step 6: Final answer
    x = 381,365.42

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1.5x scale

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.