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Finding the Fourth Proportional to 565,638.74, 780,535.30 and 333,028.96

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Solution

The fourth proportional to 565,638.74, 780,535.30 and 333,028.96 is: 459,552.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,638.74 : 780,535.30 = 333,028.96 : x
  2. Step 2: Convert to fraction form
    565,638.74/780,535.30 = 333,028.96/x
  3. Step 3: Cross multiply
    565,638.74x = 780,535.30 × 333,028.96
  4. Step 4: Simplify right side
    565,638.74x = 259,940,859,488.48
  5. Step 5: Solve for x
    x = 259,940,859,488.48/565,638.74
  6. Step 6: Final answer
    x = 459,552.79

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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.