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Finding the Fourth Proportional to 517,171.88, 775,606.24 and 201,553.40

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Solution

The fourth proportional to 517,171.88, 775,606.24 and 201,553.40 is: 302,271.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,171.88 : 775,606.24 = 201,553.40 : x
  2. Step 2: Convert to fraction form
    517,171.88/775,606.24 = 201,553.40/x
  3. Step 3: Cross multiply
    517,171.88x = 775,606.24 × 201,553.40
  4. Step 4: Simplify right side
    517,171.88x = 156,326,074,733.22
  5. Step 5: Solve for x
    x = 156,326,074,733.22/517,171.88
  6. Step 6: Final answer
    x = 302,271.03

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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.