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Finding the Fourth Proportional to 336,854.80, 505,282.20 and 261,567.33

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Solution

The fourth proportional to 336,854.80, 505,282.20 and 261,567.33 is: 392,351.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,854.80 : 505,282.20 = 261,567.33 : x
  2. Step 2: Convert to fraction form
    336,854.80/505,282.20 = 261,567.33/x
  3. Step 3: Cross multiply
    336,854.80x = 505,282.20 × 261,567.33
  4. Step 4: Simplify right side
    336,854.80x = 132,165,315,950.53
  5. Step 5: Solve for x
    x = 132,165,315,950.53/336,854.80
  6. Step 6: Final answer
    x = 392,351.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.