Home / 928,169.61-1,392,255.61-254,256.84

Finding the Fourth Proportional to 928,169.61, 1,392,255.61 and 254,256.84

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Solution

The fourth proportional to 928,169.61, 1,392,255.61 and 254,256.84 is: 381,385.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,169.61 : 1,392,255.61 = 254,256.84 : x
  2. Step 2: Convert to fraction form
    928,169.61/1,392,255.61 = 254,256.84/x
  3. Step 3: Cross multiply
    928,169.61x = 1,392,255.61 × 254,256.84
  4. Step 4: Simplify right side
    928,169.61x = 353,990,511,870.87
  5. Step 5: Solve for x
    x = 353,990,511,870.87/928,169.61
  6. Step 6: Final answer
    x = 381,385.59

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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.