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Finding the Fourth Proportional to 383,184.71, 528,755.20 and 235,986.28

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Solution

The fourth proportional to 383,184.71, 528,755.20 and 235,986.28 is: 325,636.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,184.71 : 528,755.20 = 235,986.28 : x
  2. Step 2: Convert to fraction form
    383,184.71/528,755.20 = 235,986.28/x
  3. Step 3: Cross multiply
    383,184.71x = 528,755.20 × 235,986.28
  4. Step 4: Simplify right side
    383,184.71x = 124,778,973,634.58
  5. Step 5: Solve for x
    x = 124,778,973,634.58/383,184.71
  6. Step 6: Final answer
    x = 325,636.62

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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.