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Finding the Fourth Proportional to 448,101.60, 670,208.40 and 401,056.80

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Solution

The fourth proportional to 448,101.60, 670,208.40 and 401,056.80 is: 599,845.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,101.60 : 670,208.40 = 401,056.80 : x
  2. Step 2: Convert to fraction form
    448,101.60/670,208.40 = 401,056.80/x
  3. Step 3: Cross multiply
    448,101.60x = 670,208.40 × 401,056.80
  4. Step 4: Simplify right side
    448,101.60x = 268,791,636,237.12
  5. Step 5: Solve for x
    x = 268,791,636,237.12/448,101.60
  6. Step 6: Final answer
    x = 599,845.29

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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.