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Finding the Fourth Proportional to 468,539.48, 646,583.60 and 253,679.50

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Solution

The fourth proportional to 468,539.48, 646,583.60 and 253,679.50 is: 350,077.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,539.48 : 646,583.60 = 253,679.50 : x
  2. Step 2: Convert to fraction form
    468,539.48/646,583.60 = 253,679.50/x
  3. Step 3: Cross multiply
    468,539.48x = 646,583.60 × 253,679.50
  4. Step 4: Simplify right side
    468,539.48x = 164,025,004,356.20
  5. Step 5: Solve for x
    x = 164,025,004,356.20/468,539.48
  6. Step 6: Final answer
    x = 350,077.23

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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.