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Finding the Fourth Proportional to 578,269.38, 797,941.28 and 320,126.84

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Solution

The fourth proportional to 578,269.38, 797,941.28 and 320,126.84 is: 441,736.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,269.38 : 797,941.28 = 320,126.84 : x
  2. Step 2: Convert to fraction form
    578,269.38/797,941.28 = 320,126.84/x
  3. Step 3: Cross multiply
    578,269.38x = 797,941.28 × 320,126.84
  4. Step 4: Simplify right side
    578,269.38x = 255,442,414,881.62
  5. Step 5: Solve for x
    x = 255,442,414,881.62/578,269.38
  6. Step 6: Final answer
    x = 441,736.02

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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.