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Finding the Fourth Proportional to 535,894.49, 739,382.90 and 345,018.39

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Solution

The fourth proportional to 535,894.49, 739,382.90 and 345,018.39 is: 476,027.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,894.49 : 739,382.90 = 345,018.39 : x
  2. Step 2: Convert to fraction form
    535,894.49/739,382.90 = 345,018.39/x
  3. Step 3: Cross multiply
    535,894.49x = 739,382.90 × 345,018.39
  4. Step 4: Simplify right side
    535,894.49x = 255,100,696,026.44
  5. Step 5: Solve for x
    x = 255,100,696,026.44/535,894.49
  6. Step 6: Final answer
    x = 476,027.84

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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.