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Finding the Fourth Proportional to 481,994.52, 665,152.40 and 291,054.84

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Solution

The fourth proportional to 481,994.52, 665,152.40 and 291,054.84 is: 401,655.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,994.52 : 665,152.40 = 291,054.84 : x
  2. Step 2: Convert to fraction form
    481,994.52/665,152.40 = 291,054.84/x
  3. Step 3: Cross multiply
    481,994.52x = 665,152.40 × 291,054.84
  4. Step 4: Simplify right side
    481,994.52x = 193,595,825,357.62
  5. Step 5: Solve for x
    x = 193,595,825,357.62/481,994.52
  6. Step 6: Final answer
    x = 401,655.66

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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.