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Finding the Fourth Proportional to 577,187.12, 796,512.35 and 322,538.31

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Solution

The fourth proportional to 577,187.12, 796,512.35 and 322,538.31 is: 445,099.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,187.12 : 796,512.35 = 322,538.31 : x
  2. Step 2: Convert to fraction form
    577,187.12/796,512.35 = 322,538.31/x
  3. Step 3: Cross multiply
    577,187.12x = 796,512.35 × 322,538.31
  4. Step 4: Simplify right side
    577,187.12x = 256,905,748,069.47
  5. Step 5: Solve for x
    x = 256,905,748,069.47/577,187.12
  6. Step 6: Final answer
    x = 445,099.58

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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.