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Finding the Fourth Proportional to 494,783.70, 682,802.82 and 268,429.20

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Solution

The fourth proportional to 494,783.70, 682,802.82 and 268,429.20 is: 370,433.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,783.70 : 682,802.82 = 268,429.20 : x
  2. Step 2: Convert to fraction form
    494,783.70/682,802.82 = 268,429.20/x
  3. Step 3: Cross multiply
    494,783.70x = 682,802.82 × 268,429.20
  4. Step 4: Simplify right side
    494,783.70x = 183,284,214,730.34
  5. Step 5: Solve for x
    x = 183,284,214,730.34/494,783.70
  6. Step 6: Final answer
    x = 370,433.01

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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.