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Finding the Fourth Proportional to 552,568.52, 762,536.94 and 310,851.02

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Solution

The fourth proportional to 552,568.52, 762,536.94 and 310,851.02 is: 428,970.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,568.52 : 762,536.94 = 310,851.02 : x
  2. Step 2: Convert to fraction form
    552,568.52/762,536.94 = 310,851.02/x
  3. Step 3: Cross multiply
    552,568.52x = 762,536.94 × 310,851.02
  4. Step 4: Simplify right side
    552,568.52x = 237,035,381,773.99
  5. Step 5: Solve for x
    x = 237,035,381,773.99/552,568.52
  6. Step 6: Final answer
    x = 428,970.12

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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.