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Finding the Fourth Proportional to 362,978,200.20, 544,467,300.30 and 299,205,280.20

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Solution

The fourth proportional to 362,978,200.20, 544,467,300.30 and 299,205,280.20 is: 448,807,920.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,978,200.20 : 544,467,300.30 = 299,205,280.20 : x
  2. Step 2: Convert to fraction form
    362,978,200.20/544,467,300.30 = 299,205,280.20/x
  3. Step 3: Cross multiply
    362,978,200.20x = 544,467,300.30 × 299,205,280.20
  4. Step 4: Simplify right side
    362,978,200.20x = 162,907,491,145,999,008
  5. Step 5: Solve for x
    x = 162,907,491,145,999,008/362,978,200.20
  6. Step 6: Final answer
    x = 448,807,920.30

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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.