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Finding the Fourth Proportional to 605,572.20, 908,358.30 and 416,615.40

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Solution

The fourth proportional to 605,572.20, 908,358.30 and 416,615.40 is: 624,923.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,572.20 : 908,358.30 = 416,615.40 : x
  2. Step 2: Convert to fraction form
    605,572.20/908,358.30 = 416,615.40/x
  3. Step 3: Cross multiply
    605,572.20x = 908,358.30 × 416,615.40
  4. Step 4: Simplify right side
    605,572.20x = 378,436,056,497.82
  5. Step 5: Solve for x
    x = 378,436,056,497.82/605,572.20
  6. Step 6: Final answer
    x = 624,923.10

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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.