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Finding the Fourth Proportional to 522,101.80, 783,152.70 and 256,381.30

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Solution

The fourth proportional to 522,101.80, 783,152.70 and 256,381.30 is: 384,571.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,101.80 : 783,152.70 = 256,381.30 : x
  2. Step 2: Convert to fraction form
    522,101.80/783,152.70 = 256,381.30/x
  3. Step 3: Cross multiply
    522,101.80x = 783,152.70 × 256,381.30
  4. Step 4: Simplify right side
    522,101.80x = 200,785,707,324.51
  5. Step 5: Solve for x
    x = 200,785,707,324.51/522,101.80
  6. Step 6: Final answer
    x = 384,571.95

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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.