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Finding the Fourth Proportional to 548,051.12, 820,009.56 and 323,533.70

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Solution

The fourth proportional to 548,051.12, 820,009.56 and 323,533.70 is: 484,080.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,051.12 : 820,009.56 = 323,533.70 : x
  2. Step 2: Convert to fraction form
    548,051.12/820,009.56 = 323,533.70/x
  3. Step 3: Cross multiply
    548,051.12x = 820,009.56 × 323,533.70
  4. Step 4: Simplify right side
    548,051.12x = 265,300,726,982.17
  5. Step 5: Solve for x
    x = 265,300,726,982.17/548,051.12
  6. Step 6: Final answer
    x = 484,080.26

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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.