Home / 725,193.52-1,087,416.78-325,491.64

Finding the Fourth Proportional to 725,193.52, 1,087,416.78 and 325,491.64

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Solution

The fourth proportional to 725,193.52, 1,087,416.78 and 325,491.64 is: 488,069.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,193.52 : 1,087,416.78 = 325,491.64 : x
  2. Step 2: Convert to fraction form
    725,193.52/1,087,416.78 = 325,491.64/x
  3. Step 3: Cross multiply
    725,193.52x = 1,087,416.78 × 325,491.64
  4. Step 4: Simplify right side
    725,193.52x = 353,945,071,085.72
  5. Step 5: Solve for x
    x = 353,945,071,085.72/725,193.52
  6. Step 6: Final answer
    x = 488,069.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.