Home / 892,127.20-1,338,190.80-514,213.60

Finding the Fourth Proportional to 892,127.20, 1,338,190.80 and 514,213.60

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Solution

The fourth proportional to 892,127.20, 1,338,190.80 and 514,213.60 is: 771,320.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,127.20 : 1,338,190.80 = 514,213.60 : x
  2. Step 2: Convert to fraction form
    892,127.20/1,338,190.80 = 514,213.60/x
  3. Step 3: Cross multiply
    892,127.20x = 1,338,190.80 × 514,213.60
  4. Step 4: Simplify right side
    892,127.20x = 688,115,908,754.88
  5. Step 5: Solve for x
    x = 688,115,908,754.88/892,127.20
  6. Step 6: Final answer
    x = 771,320.40

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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.