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Finding the Fourth Proportional to 448,141.60, 670,268.40 and 401,096.80

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Solution

The fourth proportional to 448,141.60, 670,268.40 and 401,096.80 is: 599,905.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,141.60 : 670,268.40 = 401,096.80 : x
  2. Step 2: Convert to fraction form
    448,141.60/670,268.40 = 401,096.80/x
  3. Step 3: Cross multiply
    448,141.60x = 670,268.40 × 401,096.80
  4. Step 4: Simplify right side
    448,141.60x = 268,842,510,381.12
  5. Step 5: Solve for x
    x = 268,842,510,381.12/448,141.60
  6. Step 6: Final answer
    x = 599,905.28

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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.