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Finding the Fourth Proportional to 551,408.10, 827,112.15 and 374,460.90

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Solution

The fourth proportional to 551,408.10, 827,112.15 and 374,460.90 is: 561,691.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,408.10 : 827,112.15 = 374,460.90 : x
  2. Step 2: Convert to fraction form
    551,408.10/827,112.15 = 374,460.90/x
  3. Step 3: Cross multiply
    551,408.10x = 827,112.15 × 374,460.90
  4. Step 4: Simplify right side
    551,408.10x = 309,721,160,089.94
  5. Step 5: Solve for x
    x = 309,721,160,089.94/551,408.10
  6. Step 6: Final answer
    x = 561,691.35

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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.