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Finding the Fourth Proportional to 383,513.80, 574,838.70 and 183,929.80

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Solution

The fourth proportional to 383,513.80, 574,838.70 and 183,929.80 is: 275,687.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,513.80 : 574,838.70 = 183,929.80 : x
  2. Step 2: Convert to fraction form
    383,513.80/574,838.70 = 183,929.80/x
  3. Step 3: Cross multiply
    383,513.80x = 574,838.70 × 183,929.80
  4. Step 4: Simplify right side
    383,513.80x = 105,729,967,123.26
  5. Step 5: Solve for x
    x = 105,729,967,123.26/383,513.80
  6. Step 6: Final answer
    x = 275,687.52

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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.