Home / 887,066.20-1,330,599.30-512,651.80

Finding the Fourth Proportional to 887,066.20, 1,330,599.30 and 512,651.80

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Solution

The fourth proportional to 887,066.20, 1,330,599.30 and 512,651.80 is: 768,977.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,066.20 : 1,330,599.30 = 512,651.80 : x
  2. Step 2: Convert to fraction form
    887,066.20/1,330,599.30 = 512,651.80/x
  3. Step 3: Cross multiply
    887,066.20x = 1,330,599.30 × 512,651.80
  4. Step 4: Simplify right side
    887,066.20x = 682,134,126,223.74
  5. Step 5: Solve for x
    x = 682,134,126,223.74/887,066.20
  6. Step 6: Final answer
    x = 768,977.70

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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.