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Finding the Fourth Proportional to 383,425.40, 575,138.10 and 241,707.80

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Solution

The fourth proportional to 383,425.40, 575,138.10 and 241,707.80 is: 362,561.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,425.40 : 575,138.10 = 241,707.80 : x
  2. Step 2: Convert to fraction form
    383,425.40/575,138.10 = 241,707.80/x
  3. Step 3: Cross multiply
    383,425.40x = 575,138.10 × 241,707.80
  4. Step 4: Simplify right side
    383,425.40x = 139,015,364,847.18
  5. Step 5: Solve for x
    x = 139,015,364,847.18/383,425.40
  6. Step 6: Final answer
    x = 362,561.70

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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.