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Finding the Fourth Proportional to 576,156.36, 795,121.20 and 321,508.56

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Solution

The fourth proportional to 576,156.36, 795,121.20 and 321,508.56 is: 443,696.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,156.36 : 795,121.20 = 321,508.56 : x
  2. Step 2: Convert to fraction form
    576,156.36/795,121.20 = 321,508.56/x
  3. Step 3: Cross multiply
    576,156.36x = 795,121.20 × 321,508.56
  4. Step 4: Simplify right side
    576,156.36x = 255,638,272,037.47
  5. Step 5: Solve for x
    x = 255,638,272,037.47/576,156.36
  6. Step 6: Final answer
    x = 443,696.00

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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.