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Finding the Fourth Proportional to 508,334.53, 761,969.77 and 171,258.70

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Solution

The fourth proportional to 508,334.53, 761,969.77 and 171,258.70 is: 256,708.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,334.53 : 761,969.77 = 171,258.70 : x
  2. Step 2: Convert to fraction form
    508,334.53/761,969.77 = 171,258.70/x
  3. Step 3: Cross multiply
    508,334.53x = 761,969.77 × 171,258.70
  4. Step 4: Simplify right side
    508,334.53x = 130,493,952,249.50
  5. Step 5: Solve for x
    x = 130,493,952,249.50/508,334.53
  6. Step 6: Final answer
    x = 256,708.81

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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.