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Finding the Fourth Proportional to 404,384.40, 605,378.52 and 299,673.36

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Solution

The fourth proportional to 404,384.40, 605,378.52 and 299,673.36 is: 448,622.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,384.40 : 605,378.52 = 299,673.36 : x
  2. Step 2: Convert to fraction form
    404,384.40/605,378.52 = 299,673.36/x
  3. Step 3: Cross multiply
    404,384.40x = 605,378.52 × 299,673.36
  4. Step 4: Simplify right side
    404,384.40x = 181,415,815,160.23
  5. Step 5: Solve for x
    x = 181,415,815,160.23/404,384.40
  6. Step 6: Final answer
    x = 448,622.19

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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.