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Finding the Fourth Proportional to 333,494.85, 459,912 and 308,725.02

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Solution

The fourth proportional to 333,494.85, 459,912 and 308,725.02 is: 425,752.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,494.85 : 459,912 = 308,725.02 : x
  2. Step 2: Convert to fraction form
    333,494.85/459,912 = 308,725.02/x
  3. Step 3: Cross multiply
    333,494.85x = 459,912 × 308,725.02
  4. Step 4: Simplify right side
    333,494.85x = 141,986,339,098.68
  5. Step 5: Solve for x
    x = 141,986,339,098.68/333,494.85
  6. Step 6: Final answer
    x = 425,752.72

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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.