Home / 1,319,452.14-1,978,906.05-644,840.94

Finding the Fourth Proportional to 1,319,452.14, 1,978,906.05 and 644,840.94

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Solution

The fourth proportional to 1,319,452.14, 1,978,906.05 and 644,840.94 is: 967,128.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,452.14 : 1,978,906.05 = 644,840.94 : x
  2. Step 2: Convert to fraction form
    1,319,452.14/1,978,906.05 = 644,840.94/x
  3. Step 3: Cross multiply
    1,319,452.14x = 1,978,906.05 × 644,840.94
  4. Step 4: Simplify right side
    1,319,452.14x = 1,276,079,637,453.69
  5. Step 5: Solve for x
    x = 1,276,079,637,453.69/1,319,452.14
  6. Step 6: Final answer
    x = 967,128.40

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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.