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Finding the Fourth Proportional to 383,393.80, 574,658.70 and 183,809.80

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Solution

The fourth proportional to 383,393.80, 574,658.70 and 183,809.80 is: 275,507.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,393.80 : 574,658.70 = 183,809.80 : x
  2. Step 2: Convert to fraction form
    383,393.80/574,658.70 = 183,809.80/x
  3. Step 3: Cross multiply
    383,393.80x = 574,658.70 × 183,809.80
  4. Step 4: Simplify right side
    383,393.80x = 105,627,900,715.26
  5. Step 5: Solve for x
    x = 105,627,900,715.26/383,393.80
  6. Step 6: Final answer
    x = 275,507.59

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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.