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Finding the Fourth Proportional to 522,089.74, 783,135.22 and 143,013.74

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Solution

The fourth proportional to 522,089.74, 783,135.22 and 143,013.74 is: 214,520.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,089.74 : 783,135.22 = 143,013.74 : x
  2. Step 2: Convert to fraction form
    522,089.74/783,135.22 = 143,013.74/x
  3. Step 3: Cross multiply
    522,089.74x = 783,135.22 × 143,013.74
  4. Step 4: Simplify right side
    522,089.74x = 111,999,093,179.78
  5. Step 5: Solve for x
    x = 111,999,093,179.78/522,089.74
  6. Step 6: Final answer
    x = 214,520.77

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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.