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Finding the Fourth Proportional to 275,790.24, 380,590.32 and 156,558.24

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Solution

The fourth proportional to 275,790.24, 380,590.32 and 156,558.24 is: 216,050.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,790.24 : 380,590.32 = 156,558.24 : x
  2. Step 2: Convert to fraction form
    275,790.24/380,590.32 = 156,558.24/x
  3. Step 3: Cross multiply
    275,790.24x = 380,590.32 × 156,558.24
  4. Step 4: Simplify right side
    275,790.24x = 59,584,550,660.24
  5. Step 5: Solve for x
    x = 59,584,550,660.24/275,790.24
  6. Step 6: Final answer
    x = 216,050.25

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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.