Home / 838,147.17-1,257,408.19-305,668.23

Finding the Fourth Proportional to 838,147.17, 1,257,408.19 and 305,668.23

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Solution

The fourth proportional to 838,147.17, 1,257,408.19 and 305,668.23 is: 458,570.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,147.17 : 1,257,408.19 = 305,668.23 : x
  2. Step 2: Convert to fraction form
    838,147.17/1,257,408.19 = 305,668.23/x
  3. Step 3: Cross multiply
    838,147.17x = 1,257,408.19 × 305,668.23
  4. Step 4: Simplify right side
    838,147.17x = 384,349,729,537.76
  5. Step 5: Solve for x
    x = 384,349,729,537.76/838,147.17
  6. Step 6: Final answer
    x = 458,570.69

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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.