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Finding the Fourth Proportional to 401,039.60, 601,559.40 and 248,824.40

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Solution

The fourth proportional to 401,039.60, 601,559.40 and 248,824.40 is: 373,236.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,039.60 : 601,559.40 = 248,824.40 : x
  2. Step 2: Convert to fraction form
    401,039.60/601,559.40 = 248,824.40/x
  3. Step 3: Cross multiply
    401,039.60x = 601,559.40 × 248,824.40
  4. Step 4: Simplify right side
    401,039.60x = 149,682,656,769.36
  5. Step 5: Solve for x
    x = 149,682,656,769.36/401,039.60
  6. Step 6: Final answer
    x = 373,236.60

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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.