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Finding the Fourth Proportional to 367,045.80, 515,045.10 and 367,045.80

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Solution

The fourth proportional to 367,045.80, 515,045.10 and 367,045.80 is: 515,045.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,045.80 : 515,045.10 = 367,045.80 : x
  2. Step 2: Convert to fraction form
    367,045.80/515,045.10 = 367,045.80/x
  3. Step 3: Cross multiply
    367,045.80x = 515,045.10 × 367,045.80
  4. Step 4: Simplify right side
    367,045.80x = 189,045,140,765.58
  5. Step 5: Solve for x
    x = 189,045,140,765.58/367,045.80
  6. Step 6: Final answer
    x = 515,045.10

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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.