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Finding the Fourth Proportional to 322,404.18, 482,975.67 and 265,559.70

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Solution

The fourth proportional to 322,404.18, 482,975.67 and 265,559.70 is: 397,820.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,404.18 : 482,975.67 = 265,559.70 : x
  2. Step 2: Convert to fraction form
    322,404.18/482,975.67 = 265,559.70/x
  3. Step 3: Cross multiply
    322,404.18x = 482,975.67 × 265,559.70
  4. Step 4: Simplify right side
    322,404.18x = 128,258,874,032.50
  5. Step 5: Solve for x
    x = 128,258,874,032.50/322,404.18
  6. Step 6: Final answer
    x = 397,820.13

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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.