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Finding the Fourth Proportional to 700,003.53, 965,954.78 and 394,064.10

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Solution

The fourth proportional to 700,003.53, 965,954.78 and 394,064.10 is: 543,780.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,003.53 : 965,954.78 = 394,064.10 : x
  2. Step 2: Convert to fraction form
    700,003.53/965,954.78 = 394,064.10/x
  3. Step 3: Cross multiply
    700,003.53x = 965,954.78 × 394,064.10
  4. Step 4: Simplify right side
    700,003.53x = 380,648,099,051.08
  5. Step 5: Solve for x
    x = 380,648,099,051.08/700,003.53
  6. Step 6: Final answer
    x = 543,780.26

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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.