Home / 280,910.56-387,657.27-153,594.37

Finding the Fourth Proportional to 280,910.56, 387,657.27 and 153,594.37

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Solution

The fourth proportional to 280,910.56, 387,657.27 and 153,594.37 is: 211,960.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,910.56 : 387,657.27 = 153,594.37 : x
  2. Step 2: Convert to fraction form
    280,910.56/387,657.27 = 153,594.37/x
  3. Step 3: Cross multiply
    280,910.56x = 387,657.27 × 153,594.37
  4. Step 4: Simplify right side
    280,910.56x = 59,541,974,161.57
  5. Step 5: Solve for x
    x = 59,541,974,161.57/280,910.56
  6. Step 6: Final answer
    x = 211,960.61

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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.