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Finding the Fourth Proportional to 403,658.44, 602,325.21 and 361,247.04

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Solution

The fourth proportional to 403,658.44, 602,325.21 and 361,247.04 is: 539,040.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,658.44 : 602,325.21 = 361,247.04 : x
  2. Step 2: Convert to fraction form
    403,658.44/602,325.21 = 361,247.04/x
  3. Step 3: Cross multiply
    403,658.44x = 602,325.21 × 361,247.04
  4. Step 4: Simplify right side
    403,658.44x = 217,588,200,584.56
  5. Step 5: Solve for x
    x = 217,588,200,584.56/403,658.44
  6. Step 6: Final answer
    x = 539,040.39

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.