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Finding the Third Proportional to 526,440 and 769,992

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Solution

The third proportional to 526,440 and 769,992 is: 1,126,220.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,440 : 769,992 = 769,992 : x
  2. Step 2: Convert to fraction form
    526,440/769,992 = 769,992/x
  3. Step 3: Cross multiply
    526,440x = 769,992 × 769,992
  4. Step 4: Simplify right side
    526,440x = 592,887,680,064
  5. Step 5: Solve for x
    x = 592,887,680,064/526,440
  6. Step 6: Final answer
    x = 1,126,220.80

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.