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Finding the Fourth Proportional to 522,055.80, 783,083.70 and 356,167.80

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Solution

The fourth proportional to 522,055.80, 783,083.70 and 356,167.80 is: 534,251.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,055.80 : 783,083.70 = 356,167.80 : x
  2. Step 2: Convert to fraction form
    522,055.80/783,083.70 = 356,167.80/x
  3. Step 3: Cross multiply
    522,055.80x = 783,083.70 × 356,167.80
  4. Step 4: Simplify right side
    522,055.80x = 278,909,198,644.86
  5. Step 5: Solve for x
    x = 278,909,198,644.86/522,055.80
  6. Step 6: Final answer
    x = 534,251.70

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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.