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Finding the Fourth Proportional to 395,102.10, 594,035.55 and 386,807.70

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Solution

The fourth proportional to 395,102.10, 594,035.55 and 386,807.70 is: 581,564.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,102.10 : 594,035.55 = 386,807.70 : x
  2. Step 2: Convert to fraction form
    395,102.10/594,035.55 = 386,807.70/x
  3. Step 3: Cross multiply
    395,102.10x = 594,035.55 × 386,807.70
  4. Step 4: Simplify right side
    395,102.10x = 229,777,524,813.74
  5. Step 5: Solve for x
    x = 229,777,524,813.74/395,102.10
  6. Step 6: Final answer
    x = 581,564.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.