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Finding the Fourth Proportional to 503,442.10, 755,163.15 and 411,282.10

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Solution

The fourth proportional to 503,442.10, 755,163.15 and 411,282.10 is: 616,923.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,442.10 : 755,163.15 = 411,282.10 : x
  2. Step 2: Convert to fraction form
    503,442.10/755,163.15 = 411,282.10/x
  3. Step 3: Cross multiply
    503,442.10x = 755,163.15 × 411,282.10
  4. Step 4: Simplify right side
    503,442.10x = 310,585,086,174.62
  5. Step 5: Solve for x
    x = 310,585,086,174.62/503,442.10
  6. Step 6: Final answer
    x = 616,923.15

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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.