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Finding the Fourth Proportional to 363,215.82, 501,244.83 and 212,400.30

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Solution

The fourth proportional to 363,215.82, 501,244.83 and 212,400.30 is: 293,116.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,215.82 : 501,244.83 = 212,400.30 : x
  2. Step 2: Convert to fraction form
    363,215.82/501,244.83 = 212,400.30/x
  3. Step 3: Cross multiply
    363,215.82x = 501,244.83 × 212,400.30
  4. Step 4: Simplify right side
    363,215.82x = 106,464,552,265.45
  5. Step 5: Solve for x
    x = 106,464,552,265.45/363,215.82
  6. Step 6: Final answer
    x = 293,116.51

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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.