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Finding the Fourth Proportional to 555,854.42, 766,797.35 and 351,561.28

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Solution

The fourth proportional to 555,854.42, 766,797.35 and 351,561.28 is: 484,976.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,854.42 : 766,797.35 = 351,561.28 : x
  2. Step 2: Convert to fraction form
    555,854.42/766,797.35 = 351,561.28/x
  3. Step 3: Cross multiply
    555,854.42x = 766,797.35 × 351,561.28
  4. Step 4: Simplify right side
    555,854.42x = 269,576,254,032.62
  5. Step 5: Solve for x
    x = 269,576,254,032.62/555,854.42
  6. Step 6: Final answer
    x = 484,976.36

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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.