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Finding the Third Proportional to 551,367,946 and 853,638,927

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Solution

The third proportional to 551,367,946 and 853,638,927 is: 1,321,620,930.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,367,946 : 853,638,927 = 853,638,927 : x
  2. Step 2: Convert to fraction form
    551,367,946/853,638,927 = 853,638,927/x
  3. Step 3: Cross multiply
    551,367,946x = 853,638,927 × 853,638,927
  4. Step 4: Simplify right side
    551,367,946x = 728,699,417,689,711,360
  5. Step 5: Solve for x
    x = 728,699,417,689,711,360/551,367,946
  6. Step 6: Final answer
    x = 1,321,620,930.23

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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.