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Finding the Fourth Proportional to 623,225, 934,099.37 and 285,981.39

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Solution

The fourth proportional to 623,225, 934,099.37 and 285,981.39 is: 428,633.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,225 : 934,099.37 = 285,981.39 : x
  2. Step 2: Convert to fraction form
    623,225/934,099.37 = 285,981.39/x
  3. Step 3: Cross multiply
    623,225x = 934,099.37 × 285,981.39
  4. Step 4: Simplify right side
    623,225x = 267,135,036,230.72
  5. Step 5: Solve for x
    x = 267,135,036,230.72/623,225
  6. Step 6: Final answer
    x = 428,633.38

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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.