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Finding the Fourth Proportional to 401,049.60, 601,574.40 and 374,477.55

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Solution

The fourth proportional to 401,049.60, 601,574.40 and 374,477.55 is: 561,716.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,049.60 : 601,574.40 = 374,477.55 : x
  2. Step 2: Convert to fraction form
    401,049.60/601,574.40 = 374,477.55/x
  3. Step 3: Cross multiply
    401,049.60x = 601,574.40 × 374,477.55
  4. Step 4: Simplify right side
    401,049.60x = 225,276,107,454.72
  5. Step 5: Solve for x
    x = 225,276,107,454.72/401,049.60
  6. Step 6: Final answer
    x = 561,716.33

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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.