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Finding the Fourth Proportional to 428,310.08, 591,066 and 237,323

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Solution

The fourth proportional to 428,310.08, 591,066 and 237,323 is: 327,504.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,310.08 : 591,066 = 237,323 : x
  2. Step 2: Convert to fraction form
    428,310.08/591,066 = 237,323/x
  3. Step 3: Cross multiply
    428,310.08x = 591,066 × 237,323
  4. Step 4: Simplify right side
    428,310.08x = 140,273,556,318
  5. Step 5: Solve for x
    x = 140,273,556,318/428,310.08
  6. Step 6: Final answer
    x = 327,504.68

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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.