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Finding the Fourth Proportional to 468,485.44, 646,513.25 and 253,626.05

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Solution

The fourth proportional to 468,485.44, 646,513.25 and 253,626.05 is: 350,005.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,485.44 : 646,513.25 = 253,626.05 : x
  2. Step 2: Convert to fraction form
    468,485.44/646,513.25 = 253,626.05/x
  3. Step 3: Cross multiply
    468,485.44x = 646,513.25 × 253,626.05
  4. Step 4: Simplify right side
    468,485.44x = 163,972,602,218.32
  5. Step 5: Solve for x
    x = 163,972,602,218.32/468,485.44
  6. Step 6: Final answer
    x = 350,005.76

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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.