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Finding the Fourth Proportional to 366,816.40, 512,493.20 and 366,816.40

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Solution

The fourth proportional to 366,816.40, 512,493.20 and 366,816.40 is: 512,493.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,816.40 : 512,493.20 = 366,816.40 : x
  2. Step 2: Convert to fraction form
    366,816.40/512,493.20 = 366,816.40/x
  3. Step 3: Cross multiply
    366,816.40x = 512,493.20 × 366,816.40
  4. Step 4: Simplify right side
    366,816.40x = 187,990,910,648.48
  5. Step 5: Solve for x
    x = 187,990,910,648.48/366,816.40
  6. Step 6: Final answer
    x = 512,493.20

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1.5x scale

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.