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Finding the Fourth Proportional to 404,262,511.80, 606,393,767.70 and 353,244,175.80

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Solution

The fourth proportional to 404,262,511.80, 606,393,767.70 and 353,244,175.80 is: 529,866,263.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,262,511.80 : 606,393,767.70 = 353,244,175.80 : x
  2. Step 2: Convert to fraction form
    404,262,511.80/606,393,767.70 = 353,244,175.80/x
  3. Step 3: Cross multiply
    404,262,511.80x = 606,393,767.70 × 353,244,175.80
  4. Step 4: Simplify right side
    404,262,511.80x = 214,205,066,681,443,200
  5. Step 5: Solve for x
    x = 214,205,066,681,443,200/404,262,511.80
  6. Step 6: Final answer
    x = 529,866,263.70

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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.