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Finding the Fourth Proportional to 928,293.16, 1,392,511.04 and 395,817

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Solution

The fourth proportional to 928,293.16, 1,392,511.04 and 395,817 is: 593,755.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,293.16 : 1,392,511.04 = 395,817 : x
  2. Step 2: Convert to fraction form
    928,293.16/1,392,511.04 = 395,817/x
  3. Step 3: Cross multiply
    928,293.16x = 1,392,511.04 × 395,817
  4. Step 4: Simplify right side
    928,293.16x = 551,179,542,319.68
  5. Step 5: Solve for x
    x = 551,179,542,319.68/928,293.16
  6. Step 6: Final answer
    x = 593,755.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.