Home / 1,317,630.36-1,976,424.72-419,059.14

Finding the Fourth Proportional to 1,317,630.36, 1,976,424.72 and 419,059.14

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Solution

The fourth proportional to 1,317,630.36, 1,976,424.72 and 419,059.14 is: 628,582.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,630.36 : 1,976,424.72 = 419,059.14 : x
  2. Step 2: Convert to fraction form
    1,317,630.36/1,976,424.72 = 419,059.14/x
  3. Step 3: Cross multiply
    1,317,630.36x = 1,976,424.72 × 419,059.14
  4. Step 4: Simplify right side
    1,317,630.36x = 828,238,843,437.94
  5. Step 5: Solve for x
    x = 828,238,843,437.94/1,317,630.36
  6. Step 6: Final answer
    x = 628,582.09

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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.