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Finding the Fourth Proportional to 522,076.05, 783,114.08 and 256,355.55

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Solution

The fourth proportional to 522,076.05, 783,114.08 and 256,355.55 is: 384,533.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,076.05 : 783,114.08 = 256,355.55 : x
  2. Step 2: Convert to fraction form
    522,076.05/783,114.08 = 256,355.55/x
  3. Step 3: Cross multiply
    522,076.05x = 783,114.08 × 256,355.55
  4. Step 4: Simplify right side
    522,076.05x = 200,755,639,409.37
  5. Step 5: Solve for x
    x = 200,755,639,409.37/522,076.05
  6. Step 6: Final answer
    x = 384,533.33

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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.