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Finding the Fourth Proportional to 655,397,900.88, 904,462,436.10 and 358,059,401.64

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Solution

The fourth proportional to 655,397,900.88, 904,462,436.10 and 358,059,401.64 is: 494,129,258.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,397,900.88 : 904,462,436.10 = 358,059,401.64 : x
  2. Step 2: Convert to fraction form
    655,397,900.88/904,462,436.10 = 358,059,401.64/x
  3. Step 3: Cross multiply
    655,397,900.88x = 904,462,436.10 × 358,059,401.64
  4. Step 4: Simplify right side
    655,397,900.88x = 323,851,278,675,822,720
  5. Step 5: Solve for x
    x = 323,851,278,675,822,720/655,397,900.88
  6. Step 6: Final answer
    x = 494,129,258.33

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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.