Home / 493,623.36-681,126.60-278,759.16

Finding the Fourth Proportional to 493,623.36, 681,126.60 and 278,759.16

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Solution

The fourth proportional to 493,623.36, 681,126.60 and 278,759.16 is: 384,646.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,623.36 : 681,126.60 = 278,759.16 : x
  2. Step 2: Convert to fraction form
    493,623.36/681,126.60 = 278,759.16/x
  3. Step 3: Cross multiply
    493,623.36x = 681,126.60 × 278,759.16
  4. Step 4: Simplify right side
    493,623.36x = 189,870,278,869.66
  5. Step 5: Solve for x
    x = 189,870,278,869.66/493,623.36
  6. Step 6: Final answer
    x = 384,646.06

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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.