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Finding the Fourth Proportional to 709,116.44, 978,738.48 and 450,941.06

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Solution

The fourth proportional to 709,116.44, 978,738.48 and 450,941.06 is: 622,399.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,116.44 : 978,738.48 = 450,941.06 : x
  2. Step 2: Convert to fraction form
    709,116.44/978,738.48 = 450,941.06/x
  3. Step 3: Cross multiply
    709,116.44x = 978,738.48 × 450,941.06
  4. Step 4: Simplify right side
    709,116.44x = 441,353,367,633.99
  5. Step 5: Solve for x
    x = 441,353,367,633.99/709,116.44
  6. Step 6: Final answer
    x = 622,399.01

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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.