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Finding the Fourth Proportional to 769,668.64, 1,062,428.04 and 463,762

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Solution

The fourth proportional to 769,668.64, 1,062,428.04 and 463,762 is: 640,163.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,668.64 : 1,062,428.04 = 463,762 : x
  2. Step 2: Convert to fraction form
    769,668.64/1,062,428.04 = 463,762/x
  3. Step 3: Cross multiply
    769,668.64x = 1,062,428.04 × 463,762
  4. Step 4: Simplify right side
    769,668.64x = 492,713,752,686.48
  5. Step 5: Solve for x
    x = 492,713,752,686.48/769,668.64
  6. Step 6: Final answer
    x = 640,163.48

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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.