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Finding the Fourth Proportional to 403,669.60, 604,629.60 and 333,685.60

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Solution

The fourth proportional to 403,669.60, 604,629.60 and 333,685.60 is: 499,805.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,669.60 : 604,629.60 = 333,685.60 : x
  2. Step 2: Convert to fraction form
    403,669.60/604,629.60 = 333,685.60/x
  3. Step 3: Cross multiply
    403,669.60x = 604,629.60 × 333,685.60
  4. Step 4: Simplify right side
    403,669.60x = 201,756,190,853.76
  5. Step 5: Solve for x
    x = 201,756,190,853.76/403,669.60
  6. Step 6: Final answer
    x = 499,805.26

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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.