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Finding the Fourth Proportional to 325,812.90, 488,719.35 and 303,669.53

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Solution

The fourth proportional to 325,812.90, 488,719.35 and 303,669.53 is: 455,504.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,812.90 : 488,719.35 = 303,669.53 : x
  2. Step 2: Convert to fraction form
    325,812.90/488,719.35 = 303,669.53/x
  3. Step 3: Cross multiply
    325,812.90x = 488,719.35 × 303,669.53
  4. Step 4: Simplify right side
    325,812.90x = 148,409,172,872.81
  5. Step 5: Solve for x
    x = 148,409,172,872.81/325,812.90
  6. Step 6: Final answer
    x = 455,504.29

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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.