Home / 681,819.64-940,702.59-395,282.54

Finding the Fourth Proportional to 681,819.64, 940,702.59 and 395,282.54

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Solution

The fourth proportional to 681,819.64, 940,702.59 and 395,282.54 is: 545,369.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,819.64 : 940,702.59 = 395,282.54 : x
  2. Step 2: Convert to fraction form
    681,819.64/940,702.59 = 395,282.54/x
  3. Step 3: Cross multiply
    681,819.64x = 940,702.59 × 395,282.54
  4. Step 4: Simplify right side
    681,819.64x = 371,843,311,511.54
  5. Step 5: Solve for x
    x = 371,843,311,511.54/681,819.64
  6. Step 6: Final answer
    x = 545,369.03

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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.