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Finding the Fourth Proportional to 395,252.80, 592,879.20 and 339,265.60

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Solution

The fourth proportional to 395,252.80, 592,879.20 and 339,265.60 is: 508,898.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,252.80 : 592,879.20 = 339,265.60 : x
  2. Step 2: Convert to fraction form
    395,252.80/592,879.20 = 339,265.60/x
  3. Step 3: Cross multiply
    395,252.80x = 592,879.20 × 339,265.60
  4. Step 4: Simplify right side
    395,252.80x = 201,143,517,515.52
  5. Step 5: Solve for x
    x = 201,143,517,515.52/395,252.80
  6. Step 6: Final answer
    x = 508,898.40

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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.