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Finding the Third Proportional to 352,440 and 783,360

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Solution

The third proportional to 352,440 and 783,360 is: 1,741,155.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,440 : 783,360 = 783,360 : x
  2. Step 2: Convert to fraction form
    352,440/783,360 = 783,360/x
  3. Step 3: Cross multiply
    352,440x = 783,360 × 783,360
  4. Step 4: Simplify right side
    352,440x = 613,652,889,600
  5. Step 5: Solve for x
    x = 613,652,889,600/352,440
  6. Step 6: Final answer
    x = 1,741,155.63

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.