Home / 525,194.70-787,986.45-170,220.30

Finding the Fourth Proportional to 525,194.70, 787,986.45 and 170,220.30

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Solution

The fourth proportional to 525,194.70, 787,986.45 and 170,220.30 is: 255,393.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,194.70 : 787,986.45 = 170,220.30 : x
  2. Step 2: Convert to fraction form
    525,194.70/787,986.45 = 170,220.30/x
  3. Step 3: Cross multiply
    525,194.70x = 787,986.45 × 170,220.30
  4. Step 4: Simplify right side
    525,194.70x = 134,131,289,914.94
  5. Step 5: Solve for x
    x = 134,131,289,914.94/525,194.70
  6. Step 6: Final answer
    x = 255,393.46

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Double scale
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Similar ratio
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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.