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Finding the Fourth Proportional to 522,050.80, 783,076.20 and 356,162.80

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Solution

The fourth proportional to 522,050.80, 783,076.20 and 356,162.80 is: 534,244.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,050.80 : 783,076.20 = 356,162.80 : x
  2. Step 2: Convert to fraction form
    522,050.80/783,076.20 = 356,162.80/x
  3. Step 3: Cross multiply
    522,050.80x = 783,076.20 × 356,162.80
  4. Step 4: Simplify right side
    522,050.80x = 278,902,612,005.36
  5. Step 5: Solve for x
    x = 278,902,612,005.36/522,050.80
  6. Step 6: Final answer
    x = 534,244.20

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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.