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Finding the Fourth Proportional to 495,191.57, 686,860.49 and 482,066.42

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Solution

The fourth proportional to 495,191.57, 686,860.49 and 482,066.42 is: 668,655.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,191.57 : 686,860.49 = 482,066.42 : x
  2. Step 2: Convert to fraction form
    495,191.57/686,860.49 = 482,066.42/x
  3. Step 3: Cross multiply
    495,191.57x = 686,860.49 × 482,066.42
  4. Step 4: Simplify right side
    495,191.57x = 331,112,375,224.61
  5. Step 5: Solve for x
    x = 331,112,375,224.61/495,191.57
  6. Step 6: Final answer
    x = 668,655.12

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.