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Finding the Fourth Proportional to 492,722.90, 739,084.35 and 488,057.30

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Solution

The fourth proportional to 492,722.90, 739,084.35 and 488,057.30 is: 732,085.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,722.90 : 739,084.35 = 488,057.30 : x
  2. Step 2: Convert to fraction form
    492,722.90/739,084.35 = 488,057.30/x
  3. Step 3: Cross multiply
    492,722.90x = 739,084.35 × 488,057.30
  4. Step 4: Simplify right side
    492,722.90x = 360,715,512,333.26
  5. Step 5: Solve for x
    x = 360,715,512,333.26/492,722.90
  6. Step 6: Final answer
    x = 732,085.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.