Home / 681,822.82-940,706.97-395,285.72

Finding the Fourth Proportional to 681,822.82, 940,706.97 and 395,285.72

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Solution

The fourth proportional to 681,822.82, 940,706.97 and 395,285.72 is: 545,373.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,822.82 : 940,706.97 = 395,285.72 : x
  2. Step 2: Convert to fraction form
    681,822.82/940,706.97 = 395,285.72/x
  3. Step 3: Cross multiply
    681,822.82x = 940,706.97 × 395,285.72
  4. Step 4: Simplify right side
    681,822.82x = 371,848,031,051.09
  5. Step 5: Solve for x
    x = 371,848,031,051.09/681,822.82
  6. Step 6: Final answer
    x = 545,373.41

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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.