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Finding the Fourth Proportional to 959,493, 1,324,216.98 and 557,085

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Solution

The fourth proportional to 959,493, 1,324,216.98 and 557,085 is: 768,845.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    959,493 : 1,324,216.98 = 557,085 : x
  2. Step 2: Convert to fraction form
    959,493/1,324,216.98 = 557,085/x
  3. Step 3: Cross multiply
    959,493x = 1,324,216.98 × 557,085
  4. Step 4: Simplify right side
    959,493x = 737,701,416,303.30
  5. Step 5: Solve for x
    x = 737,701,416,303.30/959,493
  6. Step 6: Final answer
    x = 768,845.02

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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.