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Finding the Fourth Proportional to 519,959,404.40, 716,338,029.39 and 363,078,021.20

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Solution

The fourth proportional to 519,959,404.40, 716,338,029.39 and 363,078,021.20 is: 500,205,577.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,959,404.40 : 716,338,029.39 = 363,078,021.20 : x
  2. Step 2: Convert to fraction form
    519,959,404.40/716,338,029.39 = 363,078,021.20/x
  3. Step 3: Cross multiply
    519,959,404.40x = 716,338,029.39 × 363,078,021.20
  4. Step 4: Simplify right side
    519,959,404.40x = 260,086,594,221,228,640
  5. Step 5: Solve for x
    x = 260,086,594,221,228,640/519,959,404.40
  6. Step 6: Final answer
    x = 500,205,577.63

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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.