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Finding the Fourth Proportional to 1,334,721.43, 1,841,914.99 and 722,874.22

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Solution

The fourth proportional to 1,334,721.43, 1,841,914.99 and 722,874.22 is: 997,566.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,334,721.43 : 1,841,914.99 = 722,874.22 : x
  2. Step 2: Convert to fraction form
    1,334,721.43/1,841,914.99 = 722,874.22/x
  3. Step 3: Cross multiply
    1,334,721.43x = 1,841,914.99 × 722,874.22
  4. Step 4: Simplify right side
    1,334,721.43x = 1,331,472,861,702.56
  5. Step 5: Solve for x
    x = 1,331,472,861,702.56/1,334,721.43
  6. Step 6: Final answer
    x = 997,566.11

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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.