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Finding the Fourth Proportional to 633,014.91, 949,522.36 and 212,289.57

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Solution

The fourth proportional to 633,014.91, 949,522.36 and 212,289.57 is: 318,434.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,014.91 : 949,522.36 = 212,289.57 : x
  2. Step 2: Convert to fraction form
    633,014.91/949,522.36 = 212,289.57/x
  3. Step 3: Cross multiply
    633,014.91x = 949,522.36 × 212,289.57
  4. Step 4: Simplify right side
    633,014.91x = 201,573,688,231.45
  5. Step 5: Solve for x
    x = 201,573,688,231.45/633,014.91
  6. Step 6: Final answer
    x = 318,434.35

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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.