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Finding the Fourth Proportional to 3,492.19, 4,819.17 and 2,315.47

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Solution

The fourth proportional to 3,492.19, 4,819.17 and 2,315.47 is: 3,195.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,492.19 : 4,819.17 = 2,315.47 : x
  2. Step 2: Convert to fraction form
    3,492.19/4,819.17 = 2,315.47/x
  3. Step 3: Cross multiply
    3,492.19x = 4,819.17 × 2,315.47
  4. Step 4: Simplify right side
    3,492.19x = 11,158,619.46
  5. Step 5: Solve for x
    x = 11,158,619.46/3,492.19
  6. Step 6: Final answer
    x = 3,195.31

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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.