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Finding the Fourth Proportional to 582,691.28, 804,129 and 328,051.58

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Solution

The fourth proportional to 582,691.28, 804,129 and 328,051.58 is: 452,719.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,691.28 : 804,129 = 328,051.58 : x
  2. Step 2: Convert to fraction form
    582,691.28/804,129 = 328,051.58/x
  3. Step 3: Cross multiply
    582,691.28x = 804,129 × 328,051.58
  4. Step 4: Simplify right side
    582,691.28x = 263,795,788,973.82
  5. Step 5: Solve for x
    x = 263,795,788,973.82/582,691.28
  6. Step 6: Final answer
    x = 452,719.64

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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.