Home / 1,290,919.60-1,932,594-905,332.06

Finding the Fourth Proportional to 1,290,919.60, 1,932,594 and 905,332.06

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Solution

The fourth proportional to 1,290,919.60, 1,932,594 and 905,332.06 is: 1,355,343.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,919.60 : 1,932,594 = 905,332.06 : x
  2. Step 2: Convert to fraction form
    1,290,919.60/1,932,594 = 905,332.06/x
  3. Step 3: Cross multiply
    1,290,919.60x = 1,932,594 × 905,332.06
  4. Step 4: Simplify right side
    1,290,919.60x = 1,749,639,307,163.64
  5. Step 5: Solve for x
    x = 1,749,639,307,163.64/1,290,919.60
  6. Step 6: Final answer
    x = 1,355,343.36

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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.