Home / 338,546.16-507,819.94-85,826.56

Finding the Fourth Proportional to 338,546.16, 507,819.94 and 85,826.56

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Solution

The fourth proportional to 338,546.16, 507,819.94 and 85,826.56 is: 128,740.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,546.16 : 507,819.94 = 85,826.56 : x
  2. Step 2: Convert to fraction form
    338,546.16/507,819.94 = 85,826.56/x
  3. Step 3: Cross multiply
    338,546.16x = 507,819.94 × 85,826.56
  4. Step 4: Simplify right side
    338,546.16x = 43,584,438,549.61
  5. Step 5: Solve for x
    x = 43,584,438,549.61/338,546.16
  6. Step 6: Final answer
    x = 128,740.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.