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Finding the Fourth Proportional to 489,052.60, 683,844.20 and 489,052.60

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Solution

The fourth proportional to 489,052.60, 683,844.20 and 489,052.60 is: 683,844.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,052.60 : 683,844.20 = 489,052.60 : x
  2. Step 2: Convert to fraction form
    489,052.60/683,844.20 = 489,052.60/x
  3. Step 3: Cross multiply
    489,052.60x = 683,844.20 × 489,052.60
  4. Step 4: Simplify right side
    489,052.60x = 334,435,784,004.92
  5. Step 5: Solve for x
    x = 334,435,784,004.92/489,052.60
  6. Step 6: Final answer
    x = 683,844.20

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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.