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Finding the Fourth Proportional to 484,595.79, 668,742.10 and 269,731.27

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Solution

The fourth proportional to 484,595.79, 668,742.10 and 269,731.27 is: 372,229.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,595.79 : 668,742.10 = 269,731.27 : x
  2. Step 2: Convert to fraction form
    484,595.79/668,742.10 = 269,731.27/x
  3. Step 3: Cross multiply
    484,595.79x = 668,742.10 × 269,731.27
  4. Step 4: Simplify right side
    484,595.79x = 180,380,655,935.47
  5. Step 5: Solve for x
    x = 180,380,655,935.47/484,595.79
  6. Step 6: Final answer
    x = 372,229.10

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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.