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Finding the Fourth Proportional to 826,696, 1,240,055.52 and 235,720

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Solution

The fourth proportional to 826,696, 1,240,055.52 and 235,720 is: 353,583.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,696 : 1,240,055.52 = 235,720 : x
  2. Step 2: Convert to fraction form
    826,696/1,240,055.52 = 235,720/x
  3. Step 3: Cross multiply
    826,696x = 1,240,055.52 × 235,720
  4. Step 4: Simplify right side
    826,696x = 292,305,887,174.40
  5. Step 5: Solve for x
    x = 292,305,887,174.40/826,696
  6. Step 6: Final answer
    x = 353,583.28

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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.