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Finding the Fourth Proportional to 651,354,714.77, 898,876,449.99 and 353,996,972.33

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Solution

The fourth proportional to 651,354,714.77, 898,876,449.99 and 353,996,972.33 is: 488,519,595.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,354,714.77 : 898,876,449.99 = 353,996,972.33 : x
  2. Step 2: Convert to fraction form
    651,354,714.77/898,876,449.99 = 353,996,972.33/x
  3. Step 3: Cross multiply
    651,354,714.77x = 898,876,449.99 × 353,996,972.33
  4. Step 4: Simplify right side
    651,354,714.77x = 318,199,541,790,704,256
  5. Step 5: Solve for x
    x = 318,199,541,790,704,256/651,354,714.77
  6. Step 6: Final answer
    x = 488,519,595.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.