Home / 493,979.52-681,705.24-279,115.32

Finding the Fourth Proportional to 493,979.52, 681,705.24 and 279,115.32

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Solution

The fourth proportional to 493,979.52, 681,705.24 and 279,115.32 is: 385,186.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,979.52 : 681,705.24 = 279,115.32 : x
  2. Step 2: Convert to fraction form
    493,979.52/681,705.24 = 279,115.32/x
  3. Step 3: Cross multiply
    493,979.52x = 681,705.24 × 279,115.32
  4. Step 4: Simplify right side
    493,979.52x = 190,274,376,208.28
  5. Step 5: Solve for x
    x = 190,274,376,208.28/493,979.52
  6. Step 6: Final answer
    x = 385,186.77

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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.