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Finding the Fourth Proportional to 647,296,873.60, 970,945,310.40 and 187,250,051.20

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Solution

The fourth proportional to 647,296,873.60, 970,945,310.40 and 187,250,051.20 is: 280,875,076.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,296,873.60 : 970,945,310.40 = 187,250,051.20 : x
  2. Step 2: Convert to fraction form
    647,296,873.60/970,945,310.40 = 187,250,051.20/x
  3. Step 3: Cross multiply
    647,296,873.60x = 970,945,310.40 × 187,250,051.20
  4. Step 4: Simplify right side
    647,296,873.60x = 181,809,559,084,799,872
  5. Step 5: Solve for x
    x = 181,809,559,084,799,872/647,296,873.60
  6. Step 6: Final answer
    x = 280,875,076.80

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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.