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Finding the Third Proportional to 555,650 and 860,931

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Solution

The third proportional to 555,650 and 860,931 is: 1,333,937.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,650 : 860,931 = 860,931 : x
  2. Step 2: Convert to fraction form
    555,650/860,931 = 860,931/x
  3. Step 3: Cross multiply
    555,650x = 860,931 × 860,931
  4. Step 4: Simplify right side
    555,650x = 741,202,186,761
  5. Step 5: Solve for x
    x = 741,202,186,761/555,650
  6. Step 6: Final answer
    x = 1,333,937.17

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.