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Finding the Fourth Proportional to 552,564.30, 762,537.60 and 310,847.04

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Solution

The fourth proportional to 552,564.30, 762,537.60 and 310,847.04 is: 428,968.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,564.30 : 762,537.60 = 310,847.04 : x
  2. Step 2: Convert to fraction form
    552,564.30/762,537.60 = 310,847.04/x
  3. Step 3: Cross multiply
    552,564.30x = 762,537.60 × 310,847.04
  4. Step 4: Simplify right side
    552,564.30x = 237,032,555,848.70
  5. Step 5: Solve for x
    x = 237,032,555,848.70/552,564.30
  6. Step 6: Final answer
    x = 428,968.28

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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.