Home / 641,731.47-886,007.22-412,377.13

Finding the Fourth Proportional to 641,731.47, 886,007.22 and 412,377.13

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Solution

The fourth proportional to 641,731.47, 886,007.22 and 412,377.13 is: 569,348.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,731.47 : 886,007.22 = 412,377.13 : x
  2. Step 2: Convert to fraction form
    641,731.47/886,007.22 = 412,377.13/x
  3. Step 3: Cross multiply
    641,731.47x = 886,007.22 × 412,377.13
  4. Step 4: Simplify right side
    641,731.47x = 365,369,114,542.88
  5. Step 5: Solve for x
    x = 365,369,114,542.88/641,731.47
  6. Step 6: Final answer
    x = 569,348.91

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1.5x scale

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.