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Finding the Fourth Proportional to 561,674.75, 842,512.13 and 187,697.75

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Solution

The fourth proportional to 561,674.75, 842,512.13 and 187,697.75 is: 281,546.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,674.75 : 842,512.13 = 187,697.75 : x
  2. Step 2: Convert to fraction form
    561,674.75/842,512.13 = 187,697.75/x
  3. Step 3: Cross multiply
    561,674.75x = 842,512.13 × 187,697.75
  4. Step 4: Simplify right side
    561,674.75x = 158,137,630,210.22
  5. Step 5: Solve for x
    x = 158,137,630,210.22/561,674.75
  6. Step 6: Final answer
    x = 281,546.63

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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.