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Finding the Fourth Proportional to 480,922.70, 663,683.91 and 266,078.03

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Solution

The fourth proportional to 480,922.70, 663,683.91 and 266,078.03 is: 367,193.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,922.70 : 663,683.91 = 266,078.03 : x
  2. Step 2: Convert to fraction form
    480,922.70/663,683.91 = 266,078.03/x
  3. Step 3: Cross multiply
    480,922.70x = 663,683.91 × 266,078.03
  4. Step 4: Simplify right side
    480,922.70x = 176,591,707,315.50
  5. Step 5: Solve for x
    x = 176,591,707,315.50/480,922.70
  6. Step 6: Final answer
    x = 367,193.54

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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.