Home / 1,319,229.40-1,978,252.80-520,099.60

Finding the Fourth Proportional to 1,319,229.40, 1,978,252.80 and 520,099.60

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Solution

The fourth proportional to 1,319,229.40, 1,978,252.80 and 520,099.60 is: 779,916.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,229.40 : 1,978,252.80 = 520,099.60 : x
  2. Step 2: Convert to fraction form
    1,319,229.40/1,978,252.80 = 520,099.60/x
  3. Step 3: Cross multiply
    1,319,229.40x = 1,978,252.80 × 520,099.60
  4. Step 4: Simplify right side
    1,319,229.40x = 1,028,888,489,978.88
  5. Step 5: Solve for x
    x = 1,028,888,489,978.88/1,319,229.40
  6. Step 6: Final answer
    x = 779,916.28

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