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Finding the Fourth Proportional to 551,946.80, 827,920.20 and 341,994.80

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Solution

The fourth proportional to 551,946.80, 827,920.20 and 341,994.80 is: 512,992.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,946.80 : 827,920.20 = 341,994.80 : x
  2. Step 2: Convert to fraction form
    551,946.80/827,920.20 = 341,994.80/x
  3. Step 3: Cross multiply
    551,946.80x = 827,920.20 × 341,994.80
  4. Step 4: Simplify right side
    551,946.80x = 283,144,403,214.96
  5. Step 5: Solve for x
    x = 283,144,403,214.96/551,946.80
  6. Step 6: Final answer
    x = 512,992.20

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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.