Home / 919,933.20-1,379,899.80-559,126.80

Finding the Fourth Proportional to 919,933.20, 1,379,899.80 and 559,126.80

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Solution

The fourth proportional to 919,933.20, 1,379,899.80 and 559,126.80 is: 838,690.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,933.20 : 1,379,899.80 = 559,126.80 : x
  2. Step 2: Convert to fraction form
    919,933.20/1,379,899.80 = 559,126.80/x
  3. Step 3: Cross multiply
    919,933.20x = 1,379,899.80 × 559,126.80
  4. Step 4: Simplify right side
    919,933.20x = 771,538,959,494.64
  5. Step 5: Solve for x
    x = 771,538,959,494.64/919,933.20
  6. Step 6: Final answer
    x = 838,690.20

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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.