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Finding the Third Proportional to 710,992 and 999,960

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Solution

The third proportional to 710,992 and 999,960 is: 1,406,373.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,992 : 999,960 = 999,960 : x
  2. Step 2: Convert to fraction form
    710,992/999,960 = 999,960/x
  3. Step 3: Cross multiply
    710,992x = 999,960 × 999,960
  4. Step 4: Simplify right side
    710,992x = 999,920,001,600
  5. Step 5: Solve for x
    x = 999,920,001,600/710,992
  6. Step 6: Final answer
    x = 1,406,373.07

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.