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Finding the Fourth Proportional to 551,481.92, 826,587.84 and 314,994.32

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Solution

The fourth proportional to 551,481.92, 826,587.84 and 314,994.32 is: 472,128.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,481.92 : 826,587.84 = 314,994.32 : x
  2. Step 2: Convert to fraction form
    551,481.92/826,587.84 = 314,994.32/x
  3. Step 3: Cross multiply
    551,481.92x = 826,587.84 × 314,994.32
  4. Step 4: Simplify right side
    551,481.92x = 260,370,474,581.07
  5. Step 5: Solve for x
    x = 260,370,474,581.07/551,481.92
  6. Step 6: Final answer
    x = 472,128.76

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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.