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Finding the Fourth Proportional to 468,623.92, 646,704.08 and 253,764

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Solution

The fourth proportional to 468,623.92, 646,704.08 and 253,764 is: 350,195.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,623.92 : 646,704.08 = 253,764 : x
  2. Step 2: Convert to fraction form
    468,623.92/646,704.08 = 253,764/x
  3. Step 3: Cross multiply
    468,623.92x = 646,704.08 × 253,764
  4. Step 4: Simplify right side
    468,623.92x = 164,110,214,157.12
  5. Step 5: Solve for x
    x = 164,110,214,157.12/468,623.92
  6. Step 6: Final answer
    x = 350,195.98

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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.