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Finding the Fourth Proportional to 624,105.70, 936,158.55 and 411,529.30

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Solution

The fourth proportional to 624,105.70, 936,158.55 and 411,529.30 is: 617,293.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,105.70 : 936,158.55 = 411,529.30 : x
  2. Step 2: Convert to fraction form
    624,105.70/936,158.55 = 411,529.30/x
  3. Step 3: Cross multiply
    624,105.70x = 936,158.55 × 411,529.30
  4. Step 4: Simplify right side
    624,105.70x = 385,256,672,770.52
  5. Step 5: Solve for x
    x = 385,256,672,770.52/624,105.70
  6. Step 6: Final answer
    x = 617,293.95

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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.