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Finding the Fourth Proportional to 879,755,062.20, 1,319,632,593.30 and 879,755,062.20

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Solution

The fourth proportional to 879,755,062.20, 1,319,632,593.30 and 879,755,062.20 is: 1,319,632,593.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,755,062.20 : 1,319,632,593.30 = 879,755,062.20 : x
  2. Step 2: Convert to fraction form
    879,755,062.20/1,319,632,593.30 = 879,755,062.20/x
  3. Step 3: Cross multiply
    879,755,062.20x = 1,319,632,593.30 × 879,755,062.20
  4. Step 4: Simplify right side
    879,755,062.20x = 1,160,953,454,199,788,800
  5. Step 5: Solve for x
    x = 1,160,953,454,199,788,800/879,755,062.20
  6. Step 6: Final answer
    x = 1,319,632,593.30

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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.