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Finding the Fourth Proportional to 508,240.60, 762,431.22 and 171,377.68

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Solution

The fourth proportional to 508,240.60, 762,431.22 and 171,377.68 is: 257,090.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,240.60 : 762,431.22 = 171,377.68 : x
  2. Step 2: Convert to fraction form
    508,240.60/762,431.22 = 171,377.68/x
  3. Step 3: Cross multiply
    508,240.60x = 762,431.22 × 171,377.68
  4. Step 4: Simplify right side
    508,240.60x = 130,663,693,643.17
  5. Step 5: Solve for x
    x = 130,663,693,643.17/508,240.60
  6. Step 6: Final answer
    x = 257,090.23

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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.