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Finding the Fourth Proportional to 554,972.97, 765,862.69 and 300,324.16

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Solution

The fourth proportional to 554,972.97, 765,862.69 and 300,324.16 is: 414,447.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,972.97 : 765,862.69 = 300,324.16 : x
  2. Step 2: Convert to fraction form
    554,972.97/765,862.69 = 300,324.16/x
  3. Step 3: Cross multiply
    554,972.97x = 765,862.69 × 300,324.16
  4. Step 4: Simplify right side
    554,972.97x = 230,007,069,049.59
  5. Step 5: Solve for x
    x = 230,007,069,049.59/554,972.97
  6. Step 6: Final answer
    x = 414,447.34

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1.5x scale

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.