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Finding the Fourth Proportional to 383,639.56, 575,657.10 and 170,554.48

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Solution

The fourth proportional to 383,639.56, 575,657.10 and 170,554.48 is: 255,919.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,639.56 : 575,657.10 = 170,554.48 : x
  2. Step 2: Convert to fraction form
    383,639.56/575,657.10 = 170,554.48/x
  3. Step 3: Cross multiply
    383,639.56x = 575,657.10 × 170,554.48
  4. Step 4: Simplify right side
    383,639.56x = 98,180,897,348.81
  5. Step 5: Solve for x
    x = 98,180,897,348.81/383,639.56
  6. Step 6: Final answer
    x = 255,919.64

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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.