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Finding the Fourth Proportional to 489,082.10, 683,885.50 and 489,082.10

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Solution

The fourth proportional to 489,082.10, 683,885.50 and 489,082.10 is: 683,885.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,082.10 : 683,885.50 = 489,082.10 : x
  2. Step 2: Convert to fraction form
    489,082.10/683,885.50 = 489,082.10/x
  3. Step 3: Cross multiply
    489,082.10x = 683,885.50 × 489,082.10
  4. Step 4: Simplify right side
    489,082.10x = 334,476,156,499.55
  5. Step 5: Solve for x
    x = 334,476,156,499.55/489,082.10
  6. Step 6: Final answer
    x = 683,885.50

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.