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Finding the Fourth Proportional to 404,264,604.10, 606,396,906.15 and 361,938,280.90

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Solution

The fourth proportional to 404,264,604.10, 606,396,906.15 and 361,938,280.90 is: 542,907,421.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,264,604.10 : 606,396,906.15 = 361,938,280.90 : x
  2. Step 2: Convert to fraction form
    404,264,604.10/606,396,906.15 = 361,938,280.90/x
  3. Step 3: Cross multiply
    404,264,604.10x = 606,396,906.15 × 361,938,280.90
  4. Step 4: Simplify right side
    404,264,604.10x = 219,478,253,755,009,600
  5. Step 5: Solve for x
    x = 219,478,253,755,009,600/404,264,604.10
  6. Step 6: Final answer
    x = 542,907,421.35

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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.