Home / 1,265,139.32-1,745,917.48-692,191.80

Finding the Fourth Proportional to 1,265,139.32, 1,745,917.48 and 692,191.80

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Solution

The fourth proportional to 1,265,139.32, 1,745,917.48 and 692,191.80 is: 955,238.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265,139.32 : 1,745,917.48 = 692,191.80 : x
  2. Step 2: Convert to fraction form
    1,265,139.32/1,745,917.48 = 692,191.80/x
  3. Step 3: Cross multiply
    1,265,139.32x = 1,745,917.48 × 692,191.80
  4. Step 4: Simplify right side
    1,265,139.32x = 1,208,509,763,132.66
  5. Step 5: Solve for x
    x = 1,208,509,763,132.66/1,265,139.32
  6. Step 6: Final answer
    x = 955,238.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.