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Finding the Fourth Proportional to 401,060.70, 601,396.65 and 223,379.10

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Solution

The fourth proportional to 401,060.70, 601,396.65 and 223,379.10 is: 334,960.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,060.70 : 601,396.65 = 223,379.10 : x
  2. Step 2: Convert to fraction form
    401,060.70/601,396.65 = 223,379.10/x
  3. Step 3: Cross multiply
    401,060.70x = 601,396.65 × 223,379.10
  4. Step 4: Simplify right side
    401,060.70x = 134,339,442,420.02
  5. Step 5: Solve for x
    x = 134,339,442,420.02/401,060.70
  6. Step 6: Final answer
    x = 334,960.37

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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.