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Finding the Fourth Proportional to 562,408.20, 843,612.30 and 519,105.60

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Solution

The fourth proportional to 562,408.20, 843,612.30 and 519,105.60 is: 778,658.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,408.20 : 843,612.30 = 519,105.60 : x
  2. Step 2: Convert to fraction form
    562,408.20/843,612.30 = 519,105.60/x
  3. Step 3: Cross multiply
    562,408.20x = 843,612.30 × 519,105.60
  4. Step 4: Simplify right side
    562,408.20x = 437,923,869,158.88
  5. Step 5: Solve for x
    x = 437,923,869,158.88/562,408.20
  6. Step 6: Final answer
    x = 778,658.40

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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.