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Finding the Fourth Proportional to 448,404,858.60, 672,607,287.90 and 275,320,429.80

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Solution

The fourth proportional to 448,404,858.60, 672,607,287.90 and 275,320,429.80 is: 412,980,644.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,404,858.60 : 672,607,287.90 = 275,320,429.80 : x
  2. Step 2: Convert to fraction form
    448,404,858.60/672,607,287.90 = 275,320,429.80/x
  3. Step 3: Cross multiply
    448,404,858.60x = 672,607,287.90 × 275,320,429.80
  4. Step 4: Simplify right side
    448,404,858.60x = 185,182,527,591,240,352
  5. Step 5: Solve for x
    x = 185,182,527,591,240,352/448,404,858.60
  6. Step 6: Final answer
    x = 412,980,644.70

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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.