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Finding the Fourth Proportional to 412,920,876,673.90, 619,381,315,010.82 and 412,920,876,673.90

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Solution

The fourth proportional to 412,920,876,673.90, 619,381,315,010.82 and 412,920,876,673.90 is: 619,381,315,010.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,920,876,673.90 : 619,381,315,010.82 = 412,920,876,673.90 : x
  2. Step 2: Convert to fraction form
    412,920,876,673.90/619,381,315,010.82 = 412,920,876,673.90/x
  3. Step 3: Cross multiply
    412,920,876,673.90x = 619,381,315,010.82 × 412,920,876,673.90
  4. Step 4: Simplify right side
    412,920,876,673.90x = 255,755,475,589,700,794,712,064
  5. Step 5: Solve for x
    x = 255,755,475,589,700,794,712,064/412,920,876,673.90
  6. Step 6: Final answer
    x = 619,381,315,010.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.