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Finding the Fourth Proportional to 363,763.74, 502,019.20 and 220,529.82

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Solution

The fourth proportional to 363,763.74, 502,019.20 and 220,529.82 is: 304,346.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,763.74 : 502,019.20 = 220,529.82 : x
  2. Step 2: Convert to fraction form
    363,763.74/502,019.20 = 220,529.82/x
  3. Step 3: Cross multiply
    363,763.74x = 502,019.20 × 220,529.82
  4. Step 4: Simplify right side
    363,763.74x = 110,710,203,812.54
  5. Step 5: Solve for x
    x = 110,710,203,812.54/363,763.74
  6. Step 6: Final answer
    x = 304,346.45

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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.