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Finding the Fourth Proportional to 286,558.23, 395,449.25 and 157,505.25

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Solution

The fourth proportional to 286,558.23, 395,449.25 and 157,505.25 is: 217,356.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,558.23 : 395,449.25 = 157,505.25 : x
  2. Step 2: Convert to fraction form
    286,558.23/395,449.25 = 157,505.25/x
  3. Step 3: Cross multiply
    286,558.23x = 395,449.25 × 157,505.25
  4. Step 4: Simplify right side
    286,558.23x = 62,285,332,196.04
  5. Step 5: Solve for x
    x = 62,285,332,196.04/286,558.23
  6. Step 6: Final answer
    x = 217,356.63

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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.