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Finding the Fourth Proportional to 522,573.26, 783,861.17 and 143,499.33

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Solution

The fourth proportional to 522,573.26, 783,861.17 and 143,499.33 is: 215,249.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,573.26 : 783,861.17 = 143,499.33 : x
  2. Step 2: Convert to fraction form
    522,573.26/783,861.17 = 143,499.33/x
  3. Step 3: Cross multiply
    522,573.26x = 783,861.17 × 143,499.33
  4. Step 4: Simplify right side
    522,573.26x = 112,483,551,990.52
  5. Step 5: Solve for x
    x = 112,483,551,990.52/522,573.26
  6. Step 6: Final answer
    x = 215,249.35

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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.