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Finding the Fourth Proportional to 316,461.43, 436,717.25 and 173,230.54

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Solution

The fourth proportional to 316,461.43, 436,717.25 and 173,230.54 is: 239,058.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,461.43 : 436,717.25 = 173,230.54 : x
  2. Step 2: Convert to fraction form
    316,461.43/436,717.25 = 173,230.54/x
  3. Step 3: Cross multiply
    316,461.43x = 436,717.25 × 173,230.54
  4. Step 4: Simplify right side
    316,461.43x = 75,652,765,044.82
  5. Step 5: Solve for x
    x = 75,652,765,044.82/316,461.43
  6. Step 6: Final answer
    x = 239,058.41

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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.