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Finding the Fourth Proportional to 403,039.60, 603,684.60 and 333,055.60

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Solution

The fourth proportional to 403,039.60, 603,684.60 and 333,055.60 is: 498,860.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,039.60 : 603,684.60 = 333,055.60 : x
  2. Step 2: Convert to fraction form
    403,039.60/603,684.60 = 333,055.60/x
  3. Step 3: Cross multiply
    403,039.60x = 603,684.60 × 333,055.60
  4. Step 4: Simplify right side
    403,039.60x = 201,060,536,663.76
  5. Step 5: Solve for x
    x = 201,060,536,663.76/403,039.60
  6. Step 6: Final answer
    x = 498,860.50

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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.