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Finding the Fourth Proportional to 508,057.14, 762,085.72 and 171,069.58

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Solution

The fourth proportional to 508,057.14, 762,085.72 and 171,069.58 is: 256,604.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,057.14 : 762,085.72 = 171,069.58 : x
  2. Step 2: Convert to fraction form
    508,057.14/762,085.72 = 171,069.58/x
  3. Step 3: Cross multiply
    508,057.14x = 762,085.72 × 171,069.58
  4. Step 4: Simplify right side
    508,057.14x = 130,369,679,378.62
  5. Step 5: Solve for x
    x = 130,369,679,378.62/508,057.14
  6. Step 6: Final answer
    x = 256,604.37

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Double scale
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Similar ratio
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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.