Home / 641,729.24-886,186.44-412,684.28

Finding the Fourth Proportional to 641,729.24, 886,186.44 and 412,684.28

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Solution

The fourth proportional to 641,729.24, 886,186.44 and 412,684.28 is: 569,890.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,729.24 : 886,186.44 = 412,684.28 : x
  2. Step 2: Convert to fraction form
    641,729.24/886,186.44 = 412,684.28/x
  3. Step 3: Cross multiply
    641,729.24x = 886,186.44 × 412,684.28
  4. Step 4: Simplify right side
    641,729.24x = 365,715,208,506.23
  5. Step 5: Solve for x
    x = 365,715,208,506.23/641,729.24
  6. Step 6: Final answer
    x = 569,890.21

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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.