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Finding the Fourth Proportional to 365,813.40, 548,720.10 and 299,328.60

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Solution

The fourth proportional to 365,813.40, 548,720.10 and 299,328.60 is: 448,992.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,813.40 : 548,720.10 = 299,328.60 : x
  2. Step 2: Convert to fraction form
    365,813.40/548,720.10 = 299,328.60/x
  3. Step 3: Cross multiply
    365,813.40x = 548,720.10 × 299,328.60
  4. Step 4: Simplify right side
    365,813.40x = 164,247,619,324.86
  5. Step 5: Solve for x
    x = 164,247,619,324.86/365,813.40
  6. Step 6: Final answer
    x = 448,992.90

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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.