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Finding the Fourth Proportional to 791,752,485, 1,187,590,099.32 and 293,859,878.64

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Solution

The fourth proportional to 791,752,485, 1,187,590,099.32 and 293,859,878.64 is: 440,775,481.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,752,485 : 1,187,590,099.32 = 293,859,878.64 : x
  2. Step 2: Convert to fraction form
    791,752,485/1,187,590,099.32 = 293,859,878.64/x
  3. Step 3: Cross multiply
    791,752,485x = 1,187,590,099.32 × 293,859,878.64
  4. Step 4: Simplify right side
    791,752,485x = 348,985,082,460,240,704
  5. Step 5: Solve for x
    x = 348,985,082,460,240,704/791,752,485
  6. Step 6: Final answer
    x = 440,775,481.06

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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.