Home / 679,911.82-938,301.33-374,010.94

Finding the Fourth Proportional to 679,911.82, 938,301.33 and 374,010.94

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Solution

The fourth proportional to 679,911.82, 938,301.33 and 374,010.94 is: 516,147.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,911.82 : 938,301.33 = 374,010.94 : x
  2. Step 2: Convert to fraction form
    679,911.82/938,301.33 = 374,010.94/x
  3. Step 3: Cross multiply
    679,911.82x = 938,301.33 × 374,010.94
  4. Step 4: Simplify right side
    679,911.82x = 350,934,962,436.55
  5. Step 5: Solve for x
    x = 350,934,962,436.55/679,911.82
  6. Step 6: Final answer
    x = 516,147.76

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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.