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Finding the Fourth Proportional to 522,089.48, 783,134.85 and 143,013.49

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Solution

The fourth proportional to 522,089.48, 783,134.85 and 143,013.49 is: 214,520.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,089.48 : 783,134.85 = 143,013.49 : x
  2. Step 2: Convert to fraction form
    522,089.48/783,134.85 = 143,013.49/x
  3. Step 3: Cross multiply
    522,089.48x = 783,134.85 × 143,013.49
  4. Step 4: Simplify right side
    522,089.48x = 111,998,844,076.61
  5. Step 5: Solve for x
    x = 111,998,844,076.61/522,089.48
  6. Step 6: Final answer
    x = 214,520.40

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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.