Home / 646,732.53-892,511.13-371,140.80

Finding the Fourth Proportional to 646,732.53, 892,511.13 and 371,140.80

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Solution

The fourth proportional to 646,732.53, 892,511.13 and 371,140.80 is: 512,185.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,732.53 : 892,511.13 = 371,140.80 : x
  2. Step 2: Convert to fraction form
    646,732.53/892,511.13 = 371,140.80/x
  3. Step 3: Cross multiply
    646,732.53x = 892,511.13 × 371,140.80
  4. Step 4: Simplify right side
    646,732.53x = 331,247,296,100.53
  5. Step 5: Solve for x
    x = 331,247,296,100.53/646,732.53
  6. Step 6: Final answer
    x = 512,185.92

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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.