Home / 628,757.78-867,551.18-374,059.22

Finding the Fourth Proportional to 628,757.78, 867,551.18 and 374,059.22

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Solution

The fourth proportional to 628,757.78, 867,551.18 and 374,059.22 is: 516,121.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,757.78 : 867,551.18 = 374,059.22 : x
  2. Step 2: Convert to fraction form
    628,757.78/867,551.18 = 374,059.22/x
  3. Step 3: Cross multiply
    628,757.78x = 867,551.18 × 374,059.22
  4. Step 4: Simplify right side
    628,757.78x = 324,515,517,700.88
  5. Step 5: Solve for x
    x = 324,515,517,700.88/628,757.78
  6. Step 6: Final answer
    x = 516,121.67

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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.