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Finding the Fourth Proportional to 370,272.56, 510,593.91 and 316,734.80

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Solution

The fourth proportional to 370,272.56, 510,593.91 and 316,734.80 is: 436,767.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,272.56 : 510,593.91 = 316,734.80 : x
  2. Step 2: Convert to fraction form
    370,272.56/510,593.91 = 316,734.80/x
  3. Step 3: Cross multiply
    370,272.56x = 510,593.91 × 316,734.80
  4. Step 4: Simplify right side
    370,272.56x = 161,722,859,965.07
  5. Step 5: Solve for x
    x = 161,722,859,965.07/370,272.56
  6. Step 6: Final answer
    x = 436,767.07

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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.