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Finding the Fourth Proportional to 297,851.89, 411,038.76 and 161,885.85

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Solution

The fourth proportional to 297,851.89, 411,038.76 and 161,885.85 is: 223,404.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,851.89 : 411,038.76 = 161,885.85 : x
  2. Step 2: Convert to fraction form
    297,851.89/411,038.76 = 161,885.85/x
  3. Step 3: Cross multiply
    297,851.89x = 411,038.76 × 161,885.85
  4. Step 4: Simplify right side
    297,851.89x = 66,541,359,045.55
  5. Step 5: Solve for x
    x = 66,541,359,045.55/297,851.89
  6. Step 6: Final answer
    x = 223,404.19

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1.5x scale

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.