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Finding the Fourth Proportional to 522,081.70, 783,122.55 and 362,649.40

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Solution

The fourth proportional to 522,081.70, 783,122.55 and 362,649.40 is: 543,974.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,081.70 : 783,122.55 = 362,649.40 : x
  2. Step 2: Convert to fraction form
    522,081.70/783,122.55 = 362,649.40/x
  3. Step 3: Cross multiply
    522,081.70x = 783,122.55 × 362,649.40
  4. Step 4: Simplify right side
    522,081.70x = 283,998,922,883.97
  5. Step 5: Solve for x
    x = 283,998,922,883.97/522,081.70
  6. Step 6: Final answer
    x = 543,974.10

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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.