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Finding the Fourth Proportional to 552,571.62, 762,487.04 and 310,849.19

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Solution

The fourth proportional to 552,571.62, 762,487.04 and 310,849.19 is: 428,937.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,571.62 : 762,487.04 = 310,849.19 : x
  2. Step 2: Convert to fraction form
    552,571.62/762,487.04 = 310,849.19/x
  3. Step 3: Cross multiply
    552,571.62x = 762,487.04 × 310,849.19
  4. Step 4: Simplify right side
    552,571.62x = 237,018,473,402.82
  5. Step 5: Solve for x
    x = 237,018,473,402.82/552,571.62
  6. Step 6: Final answer
    x = 428,937.11

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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.