Home / 919,440.20-1,379,160.30-254,592.20

Finding the Fourth Proportional to 919,440.20, 1,379,160.30 and 254,592.20

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Solution

The fourth proportional to 919,440.20, 1,379,160.30 and 254,592.20 is: 381,888.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,440.20 : 1,379,160.30 = 254,592.20 : x
  2. Step 2: Convert to fraction form
    919,440.20/1,379,160.30 = 254,592.20/x
  3. Step 3: Cross multiply
    919,440.20x = 1,379,160.30 × 254,592.20
  4. Step 4: Simplify right side
    919,440.20x = 351,123,448,033.86
  5. Step 5: Solve for x
    x = 351,123,448,033.86/919,440.20
  6. Step 6: Final answer
    x = 381,888.29

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Half scale
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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.