Home / 681,401.29-940,333.80-395,087.45

Finding the Fourth Proportional to 681,401.29, 940,333.80 and 395,087.45

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Solution

The fourth proportional to 681,401.29, 940,333.80 and 395,087.45 is: 545,220.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,401.29 : 940,333.80 = 395,087.45 : x
  2. Step 2: Convert to fraction form
    681,401.29/940,333.80 = 395,087.45/x
  3. Step 3: Cross multiply
    681,401.29x = 940,333.80 × 395,087.45
  4. Step 4: Simplify right side
    681,401.29x = 371,514,083,190.81
  5. Step 5: Solve for x
    x = 371,514,083,190.81/681,401.29
  6. Step 6: Final answer
    x = 545,220.69

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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.