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Finding the Third Proportional to 717,914 and 1,111,487

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Solution

The third proportional to 717,914 and 1,111,487 is: 1,720,823.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,914 : 1,111,487 = 1,111,487 : x
  2. Step 2: Convert to fraction form
    717,914/1,111,487 = 1,111,487/x
  3. Step 3: Cross multiply
    717,914x = 1,111,487 × 1,111,487
  4. Step 4: Simplify right side
    717,914x = 1,235,403,351,169
  5. Step 5: Solve for x
    x = 1,235,403,351,169/717,914
  6. Step 6: Final answer
    x = 1,720,823.60

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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.