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Finding the Fourth Proportional to 1,188,738, 1,640,487.24 and 652,194

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Solution

The fourth proportional to 1,188,738, 1,640,487.24 and 652,194 is: 900,043.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,738 : 1,640,487.24 = 652,194 : x
  2. Step 2: Convert to fraction form
    1,188,738/1,640,487.24 = 652,194/x
  3. Step 3: Cross multiply
    1,188,738x = 1,640,487.24 × 652,194
  4. Step 4: Simplify right side
    1,188,738x = 1,069,915,935,004.56
  5. Step 5: Solve for x
    x = 1,069,915,935,004.56/1,188,738
  6. Step 6: Final answer
    x = 900,043.52

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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.