Home / 653,168.91-979,815.33-253,840.53

Finding the Fourth Proportional to 653,168.91, 979,815.33 and 253,840.53

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Solution

The fourth proportional to 653,168.91, 979,815.33 and 253,840.53 is: 380,784.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,168.91 : 979,815.33 = 253,840.53 : x
  2. Step 2: Convert to fraction form
    653,168.91/979,815.33 = 253,840.53/x
  3. Step 3: Cross multiply
    653,168.91x = 979,815.33 × 253,840.53
  4. Step 4: Simplify right side
    653,168.91x = 248,716,842,669.33
  5. Step 5: Solve for x
    x = 248,716,842,669.33/653,168.91
  6. Step 6: Final answer
    x = 380,784.88

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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.