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Finding the Fourth Proportional to 383,688.74, 575,040.56 and 183,709.46

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Solution

The fourth proportional to 383,688.74, 575,040.56 and 183,709.46 is: 275,328.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,688.74 : 575,040.56 = 183,709.46 : x
  2. Step 2: Convert to fraction form
    383,688.74/575,040.56 = 183,709.46/x
  3. Step 3: Cross multiply
    383,688.74x = 575,040.56 × 183,709.46
  4. Step 4: Simplify right side
    383,688.74x = 105,640,390,755.70
  5. Step 5: Solve for x
    x = 105,640,390,755.70/383,688.74
  6. Step 6: Final answer
    x = 275,328.36

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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.