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Finding the Fourth Proportional to 647,197.41, 893,136.60 and 360,735.69

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Solution

The fourth proportional to 647,197.41, 893,136.60 and 360,735.69 is: 497,817.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,197.41 : 893,136.60 = 360,735.69 : x
  2. Step 2: Convert to fraction form
    647,197.41/893,136.60 = 360,735.69/x
  3. Step 3: Cross multiply
    647,197.41x = 893,136.60 × 360,735.69
  4. Step 4: Simplify right side
    647,197.41x = 322,186,247,665.25
  5. Step 5: Solve for x
    x = 322,186,247,665.25/647,197.41
  6. Step 6: Final answer
    x = 497,817.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.