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Finding the Fourth Proportional to 300,922.90, 415,317.81 and 173,573.62

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Solution

The fourth proportional to 300,922.90, 415,317.81 and 173,573.62 is: 239,557.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,922.90 : 415,317.81 = 173,573.62 : x
  2. Step 2: Convert to fraction form
    300,922.90/415,317.81 = 173,573.62/x
  3. Step 3: Cross multiply
    300,922.90x = 415,317.81 × 173,573.62
  4. Step 4: Simplify right side
    300,922.90x = 72,088,215,732.17
  5. Step 5: Solve for x
    x = 72,088,215,732.17/300,922.90
  6. Step 6: Final answer
    x = 239,557.09

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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.