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Finding the Fourth Proportional to 495,182.45, 683,354.57 and 291,241.96

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Solution

The fourth proportional to 495,182.45, 683,354.57 and 291,241.96 is: 401,915.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,182.45 : 683,354.57 = 291,241.96 : x
  2. Step 2: Convert to fraction form
    495,182.45/683,354.57 = 291,241.96/x
  3. Step 3: Cross multiply
    495,182.45x = 683,354.57 × 291,241.96
  4. Step 4: Simplify right side
    495,182.45x = 199,021,522,885.55
  5. Step 5: Solve for x
    x = 199,021,522,885.55/495,182.45
  6. Step 6: Final answer
    x = 401,915.55

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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.