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Finding the Fourth Proportional to 605,590.20, 908,385.30 and 416,633.40

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Solution

The fourth proportional to 605,590.20, 908,385.30 and 416,633.40 is: 624,950.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,590.20 : 908,385.30 = 416,633.40 : x
  2. Step 2: Convert to fraction form
    605,590.20/908,385.30 = 416,633.40/x
  3. Step 3: Cross multiply
    605,590.20x = 908,385.30 × 416,633.40
  4. Step 4: Simplify right side
    605,590.20x = 378,463,656,049.02
  5. Step 5: Solve for x
    x = 378,463,656,049.02/605,590.20
  6. Step 6: Final answer
    x = 624,950.10

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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.