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Finding the Fourth Proportional to 522,092.80, 783,139.20 and 356,204.80

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Solution

The fourth proportional to 522,092.80, 783,139.20 and 356,204.80 is: 534,307.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,092.80 : 783,139.20 = 356,204.80 : x
  2. Step 2: Convert to fraction form
    522,092.80/783,139.20 = 356,204.80/x
  3. Step 3: Cross multiply
    522,092.80x = 783,139.20 × 356,204.80
  4. Step 4: Simplify right side
    522,092.80x = 278,957,942,108.16
  5. Step 5: Solve for x
    x = 278,957,942,108.16/522,092.80
  6. Step 6: Final answer
    x = 534,307.20

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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.