Home / 551,946.20-827,919.30-458,634.20

Finding the Fourth Proportional to 551,946.20, 827,919.30 and 458,634.20

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Solution

The fourth proportional to 551,946.20, 827,919.30 and 458,634.20 is: 687,951.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,946.20 : 827,919.30 = 458,634.20 : x
  2. Step 2: Convert to fraction form
    551,946.20/827,919.30 = 458,634.20/x
  3. Step 3: Cross multiply
    551,946.20x = 827,919.30 × 458,634.20
  4. Step 4: Simplify right side
    551,946.20x = 379,712,105,820.06
  5. Step 5: Solve for x
    x = 379,712,105,820.06/551,946.20
  6. Step 6: Final answer
    x = 687,951.30

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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.