Home / 919,442.20-1,379,163.30-254,594.20

Finding the Fourth Proportional to 919,442.20, 1,379,163.30 and 254,594.20

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Solution

The fourth proportional to 919,442.20, 1,379,163.30 and 254,594.20 is: 381,891.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,442.20 : 1,379,163.30 = 254,594.20 : x
  2. Step 2: Convert to fraction form
    919,442.20/1,379,163.30 = 254,594.20/x
  3. Step 3: Cross multiply
    919,442.20x = 1,379,163.30 × 254,594.20
  4. Step 4: Simplify right side
    919,442.20x = 351,126,977,032.86
  5. Step 5: Solve for x
    x = 351,126,977,032.86/919,442.20
  6. Step 6: Final answer
    x = 381,891.30

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Half scale
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Double scale
Find fourth proportional to 919,443.20, 1,379,164.80 and 254,595.20
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.