Home / 438,028.75-657,114.20-171,644.86

Finding the Fourth Proportional to 438,028.75, 657,114.20 and 171,644.86

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Solution

The fourth proportional to 438,028.75, 657,114.20 and 171,644.86 is: 257,495.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,028.75 : 657,114.20 = 171,644.86 : x
  2. Step 2: Convert to fraction form
    438,028.75/657,114.20 = 171,644.86/x
  3. Step 3: Cross multiply
    438,028.75x = 657,114.20 × 171,644.86
  4. Step 4: Simplify right side
    438,028.75x = 112,790,274,863.01
  5. Step 5: Solve for x
    x = 112,790,274,863.01/438,028.75
  6. Step 6: Final answer
    x = 257,495.14

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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.