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Finding the Fourth Proportional to 448,099.60, 670,205.40 and 401,054.80

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Solution

The fourth proportional to 448,099.60, 670,205.40 and 401,054.80 is: 599,842.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,099.60 : 670,205.40 = 401,054.80 : x
  2. Step 2: Convert to fraction form
    448,099.60/670,205.40 = 401,054.80/x
  3. Step 3: Cross multiply
    448,099.60x = 670,205.40 × 401,054.80
  4. Step 4: Simplify right side
    448,099.60x = 268,789,092,655.92
  5. Step 5: Solve for x
    x = 268,789,092,655.92/448,099.60
  6. Step 6: Final answer
    x = 599,842.30

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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.