Home / 381,074.32-525,844.65-219,981.26

Finding the Fourth Proportional to 381,074.32, 525,844.65 and 219,981.26

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Solution

The fourth proportional to 381,074.32, 525,844.65 and 219,981.26 is: 303,552.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,074.32 : 525,844.65 = 219,981.26 : x
  2. Step 2: Convert to fraction form
    381,074.32/525,844.65 = 219,981.26/x
  3. Step 3: Cross multiply
    381,074.32x = 525,844.65 × 219,981.26
  4. Step 4: Simplify right side
    381,074.32x = 115,675,969,985.87
  5. Step 5: Solve for x
    x = 115,675,969,985.87/381,074.32
  6. Step 6: Final answer
    x = 303,552.26

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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.