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Finding the Fourth Proportional to 451,924.74, 623,655.90 and 247,977

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Solution

The fourth proportional to 451,924.74, 623,655.90 and 247,977 is: 342,208.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,924.74 : 623,655.90 = 247,977 : x
  2. Step 2: Convert to fraction form
    451,924.74/623,655.90 = 247,977/x
  3. Step 3: Cross multiply
    451,924.74x = 623,655.90 × 247,977
  4. Step 4: Simplify right side
    451,924.74x = 154,652,319,114.30
  5. Step 5: Solve for x
    x = 154,652,319,114.30/451,924.74
  6. Step 6: Final answer
    x = 342,208.13

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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.