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Finding the Fourth Proportional to 526,348.84, 789,515.92 and 126,986.24

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Solution

The fourth proportional to 526,348.84, 789,515.92 and 126,986.24 is: 190,477.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,348.84 : 789,515.92 = 126,986.24 : x
  2. Step 2: Convert to fraction form
    526,348.84/789,515.92 = 126,986.24/x
  3. Step 3: Cross multiply
    526,348.84x = 789,515.92 × 126,986.24
  4. Step 4: Simplify right side
    526,348.84x = 100,257,658,100.94
  5. Step 5: Solve for x
    x = 100,257,658,100.94/526,348.84
  6. Step 6: Final answer
    x = 190,477.59

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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.