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Finding the Fourth Proportional to 383,684.40, 575,526.60 and 361,911.60

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Solution

The fourth proportional to 383,684.40, 575,526.60 and 361,911.60 is: 542,867.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,684.40 : 575,526.60 = 361,911.60 : x
  2. Step 2: Convert to fraction form
    383,684.40/575,526.60 = 361,911.60/x
  3. Step 3: Cross multiply
    383,684.40x = 575,526.60 × 361,911.60
  4. Step 4: Simplify right side
    383,684.40x = 208,289,752,648.56
  5. Step 5: Solve for x
    x = 208,289,752,648.56/383,684.40
  6. Step 6: Final answer
    x = 542,867.40

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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.