Home / 525,190.20-787,979.70-170,215.80

Finding the Fourth Proportional to 525,190.20, 787,979.70 and 170,215.80

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Solution

The fourth proportional to 525,190.20, 787,979.70 and 170,215.80 is: 255,386.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,190.20 : 787,979.70 = 170,215.80 : x
  2. Step 2: Convert to fraction form
    525,190.20/787,979.70 = 170,215.80/x
  3. Step 3: Cross multiply
    525,190.20x = 787,979.70 × 170,215.80
  4. Step 4: Simplify right side
    525,190.20x = 134,126,595,019.26
  5. Step 5: Solve for x
    x = 134,126,595,019.26/525,190.20
  6. Step 6: Final answer
    x = 255,386.71

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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.