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Finding the Third Proportional to 815,587,534,911 and 1,279,416,160,938

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Solution

The third proportional to 815,587,534,911 and 1,279,416,160,938 is: 2,007,026,398,518.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,587,534,911 : 1,279,416,160,938 = 1,279,416,160,938 : x
  2. Step 2: Convert to fraction form
    815,587,534,911/1,279,416,160,938 = 1,279,416,160,938/x
  3. Step 3: Cross multiply
    815,587,534,911x = 1,279,416,160,938 × 1,279,416,160,938
  4. Step 4: Simplify right side
    815,587,534,911x = 1,636,905,712,869,330,386,944,000
  5. Step 5: Solve for x
    x = 1,636,905,712,869,330,386,944,000/815,587,534,911
  6. Step 6: Final answer
    x = 2,007,026,398,518.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.