Home / 928,171.20-1,392,256.80-297,148.80

Finding the Fourth Proportional to 928,171.20, 1,392,256.80 and 297,148.80

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Solution

The fourth proportional to 928,171.20, 1,392,256.80 and 297,148.80 is: 445,723.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,171.20 : 1,392,256.80 = 297,148.80 : x
  2. Step 2: Convert to fraction form
    928,171.20/1,392,256.80 = 297,148.80/x
  3. Step 3: Cross multiply
    928,171.20x = 1,392,256.80 × 297,148.80
  4. Step 4: Simplify right side
    928,171.20x = 413,707,437,411.84
  5. Step 5: Solve for x
    x = 413,707,437,411.84/928,171.20
  6. Step 6: Final answer
    x = 445,723.20

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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.