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Finding the Fourth Proportional to 367,619.94, 551,037.87 and 209,507.94

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Solution

The fourth proportional to 367,619.94, 551,037.87 and 209,507.94 is: 314,038.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,619.94 : 551,037.87 = 209,507.94 : x
  2. Step 2: Convert to fraction form
    367,619.94/551,037.87 = 209,507.94/x
  3. Step 3: Cross multiply
    367,619.94x = 551,037.87 × 209,507.94
  4. Step 4: Simplify right side
    367,619.94x = 115,446,809,005.69
  5. Step 5: Solve for x
    x = 115,446,809,005.69/367,619.94
  6. Step 6: Final answer
    x = 314,038.48

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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.