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Finding the Fourth Proportional to 366,921.55, 512,584.25 and 366,921.55

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Solution

The fourth proportional to 366,921.55, 512,584.25 and 366,921.55 is: 512,584.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,921.55 : 512,584.25 = 366,921.55 : x
  2. Step 2: Convert to fraction form
    366,921.55/512,584.25 = 366,921.55/x
  3. Step 3: Cross multiply
    366,921.55x = 512,584.25 × 366,921.55
  4. Step 4: Simplify right side
    366,921.55x = 188,078,207,515.59
  5. Step 5: Solve for x
    x = 188,078,207,515.59/366,921.55
  6. Step 6: Final answer
    x = 512,584.25

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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.