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Finding the Fourth Proportional to 368,478.02, 508,522.84 and 223,296.51

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Solution

The fourth proportional to 368,478.02, 508,522.84 and 223,296.51 is: 308,163.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,478.02 : 508,522.84 = 223,296.51 : x
  2. Step 2: Convert to fraction form
    368,478.02/508,522.84 = 223,296.51/x
  3. Step 3: Cross multiply
    368,478.02x = 508,522.84 × 223,296.51
  4. Step 4: Simplify right side
    368,478.02x = 113,551,374,869.05
  5. Step 5: Solve for x
    x = 113,551,374,869.05/368,478.02
  6. Step 6: Final answer
    x = 308,163.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.