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Finding the Fourth Proportional to 448,959.60, 671,495.40 and 401,914.80

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Solution

The fourth proportional to 448,959.60, 671,495.40 and 401,914.80 is: 601,131.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,959.60 : 671,495.40 = 401,914.80 : x
  2. Step 2: Convert to fraction form
    448,959.60/671,495.40 = 401,914.80/x
  3. Step 3: Cross multiply
    448,959.60x = 671,495.40 × 401,914.80
  4. Step 4: Simplify right side
    448,959.60x = 269,883,939,391.92
  5. Step 5: Solve for x
    x = 269,883,939,391.92/448,959.60
  6. Step 6: Final answer
    x = 601,131.90

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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.