Home / 629,738.76-869,040.81-412,096.72

Finding the Fourth Proportional to 629,738.76, 869,040.81 and 412,096.72

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Solution

The fourth proportional to 629,738.76, 869,040.81 and 412,096.72 is: 568,694.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,738.76 : 869,040.81 = 412,096.72 : x
  2. Step 2: Convert to fraction form
    629,738.76/869,040.81 = 412,096.72/x
  3. Step 3: Cross multiply
    629,738.76x = 869,040.81 × 412,096.72
  4. Step 4: Simplify right side
    629,738.76x = 358,128,867,347.14
  5. Step 5: Solve for x
    x = 358,128,867,347.14/629,738.76
  6. Step 6: Final answer
    x = 568,694.34

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Double scale
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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.