Home / 705,844.28-973,986.05-399,855.17

Finding the Fourth Proportional to 705,844.28, 973,986.05 and 399,855.17

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Solution

The fourth proportional to 705,844.28, 973,986.05 and 399,855.17 is: 551,755.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,844.28 : 973,986.05 = 399,855.17 : x
  2. Step 2: Convert to fraction form
    705,844.28/973,986.05 = 399,855.17/x
  3. Step 3: Cross multiply
    705,844.28x = 973,986.05 × 399,855.17
  4. Step 4: Simplify right side
    705,844.28x = 389,453,361,034.98
  5. Step 5: Solve for x
    x = 389,453,361,034.98/705,844.28
  6. Step 6: Final answer
    x = 551,755.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.