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Finding the Fourth Proportional to 366,921.30, 512,583.90 and 366,921.30

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Solution

The fourth proportional to 366,921.30, 512,583.90 and 366,921.30 is: 512,583.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,921.30 : 512,583.90 = 366,921.30 : x
  2. Step 2: Convert to fraction form
    366,921.30/512,583.90 = 366,921.30/x
  3. Step 3: Cross multiply
    366,921.30x = 512,583.90 × 366,921.30
  4. Step 4: Simplify right side
    366,921.30x = 188,077,950,947.07
  5. Step 5: Solve for x
    x = 188,077,950,947.07/366,921.30
  6. Step 6: Final answer
    x = 512,583.90

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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.