Home / 919,431.64-1,379,147.70-254,583.64

Finding the Fourth Proportional to 919,431.64, 1,379,147.70 and 254,583.64

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Solution

The fourth proportional to 919,431.64, 1,379,147.70 and 254,583.64 is: 381,875.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,431.64 : 1,379,147.70 = 254,583.64 : x
  2. Step 2: Convert to fraction form
    919,431.64/1,379,147.70 = 254,583.64/x
  3. Step 3: Cross multiply
    919,431.64x = 1,379,147.70 × 254,583.64
  4. Step 4: Simplify right side
    919,431.64x = 351,108,441,563.63
  5. Step 5: Solve for x
    x = 351,108,441,563.63/919,431.64
  6. Step 6: Final answer
    x = 381,875.53

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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.