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Finding the Fourth Proportional to 340,939.25, 512,530.01 and 316,277.03

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Solution

The fourth proportional to 340,939.25, 512,530.01 and 316,277.03 is: 475,455.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,939.25 : 512,530.01 = 316,277.03 : x
  2. Step 2: Convert to fraction form
    340,939.25/512,530.01 = 316,277.03/x
  3. Step 3: Cross multiply
    340,939.25x = 512,530.01 × 316,277.03
  4. Step 4: Simplify right side
    340,939.25x = 162,101,468,858.04
  5. Step 5: Solve for x
    x = 162,101,468,858.04/340,939.25
  6. Step 6: Final answer
    x = 475,455.58

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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.