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Finding the Fourth Proportional to 367,091.05, 515,108.45 and 367,091.05

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Solution

The fourth proportional to 367,091.05, 515,108.45 and 367,091.05 is: 515,108.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,091.05 : 515,108.45 = 367,091.05 : x
  2. Step 2: Convert to fraction form
    367,091.05/515,108.45 = 367,091.05/x
  3. Step 3: Cross multiply
    367,091.05x = 515,108.45 × 367,091.05
  4. Step 4: Simplify right side
    367,091.05x = 189,091,701,774.37
  5. Step 5: Solve for x
    x = 189,091,701,774.37/367,091.05
  6. Step 6: Final answer
    x = 515,108.45

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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.