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Finding the Fourth Proportional to 505,626.76, 758,146.72 and 239,385.03

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Solution

The fourth proportional to 505,626.76, 758,146.72 and 239,385.03 is: 358,938.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,626.76 : 758,146.72 = 239,385.03 : x
  2. Step 2: Convert to fraction form
    505,626.76/758,146.72 = 239,385.03/x
  3. Step 3: Cross multiply
    505,626.76x = 758,146.72 × 239,385.03
  4. Step 4: Simplify right side
    505,626.76x = 181,488,975,311.60
  5. Step 5: Solve for x
    x = 181,488,975,311.60/505,626.76
  6. Step 6: Final answer
    x = 358,938.63

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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.