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Finding the Fourth Proportional to 291,996.30, 437,994.45 and 264,002.70

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Solution

The fourth proportional to 291,996.30, 437,994.45 and 264,002.70 is: 396,004.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,996.30 : 437,994.45 = 264,002.70 : x
  2. Step 2: Convert to fraction form
    291,996.30/437,994.45 = 264,002.70/x
  3. Step 3: Cross multiply
    291,996.30x = 437,994.45 × 264,002.70
  4. Step 4: Simplify right side
    291,996.30x = 115,631,717,385.02
  5. Step 5: Solve for x
    x = 115,631,717,385.02/291,996.30
  6. Step 6: Final answer
    x = 396,004.05

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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.