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Finding the Fourth Proportional to 399,696.40, 599,544.60 and 337,488.40

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Solution

The fourth proportional to 399,696.40, 599,544.60 and 337,488.40 is: 506,232.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,696.40 : 599,544.60 = 337,488.40 : x
  2. Step 2: Convert to fraction form
    399,696.40/599,544.60 = 337,488.40/x
  3. Step 3: Cross multiply
    399,696.40x = 599,544.60 × 337,488.40
  4. Step 4: Simplify right side
    399,696.40x = 202,339,347,782.64
  5. Step 5: Solve for x
    x = 202,339,347,782.64/399,696.40
  6. Step 6: Final answer
    x = 506,232.60

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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.