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Finding the Fourth Proportional to 367,042.80, 515,040.90 and 367,042.80

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Solution

The fourth proportional to 367,042.80, 515,040.90 and 367,042.80 is: 515,040.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,042.80 : 515,040.90 = 367,042.80 : x
  2. Step 2: Convert to fraction form
    367,042.80/515,040.90 = 367,042.80/x
  3. Step 3: Cross multiply
    367,042.80x = 515,040.90 × 367,042.80
  4. Step 4: Simplify right side
    367,042.80x = 189,042,054,050.52
  5. Step 5: Solve for x
    x = 189,042,054,050.52/367,042.80
  6. Step 6: Final answer
    x = 515,040.90

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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.