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Finding the Fourth Proportional to 275,814.20, 414,110.10 and 170,838.20

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Solution

The fourth proportional to 275,814.20, 414,110.10 and 170,838.20 is: 256,498.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,814.20 : 414,110.10 = 170,838.20 : x
  2. Step 2: Convert to fraction form
    275,814.20/414,110.10 = 170,838.20/x
  3. Step 3: Cross multiply
    275,814.20x = 414,110.10 × 170,838.20
  4. Step 4: Simplify right side
    275,814.20x = 70,745,824,085.82
  5. Step 5: Solve for x
    x = 70,745,824,085.82/275,814.20
  6. Step 6: Final answer
    x = 256,498.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.