Home / 1,272,518.86-1,756,109.56-699,573.46

Finding the Fourth Proportional to 1,272,518.86, 1,756,109.56 and 699,573.46

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Solution

The fourth proportional to 1,272,518.86, 1,756,109.56 and 699,573.46 is: 965,429.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,518.86 : 1,756,109.56 = 699,573.46 : x
  2. Step 2: Convert to fraction form
    1,272,518.86/1,756,109.56 = 699,573.46/x
  3. Step 3: Cross multiply
    1,272,518.86x = 1,756,109.56 × 699,573.46
  4. Step 4: Simplify right side
    1,272,518.86x = 1,228,527,641,028.28
  5. Step 5: Solve for x
    x = 1,228,527,641,028.28/1,272,518.86
  6. Step 6: Final answer
    x = 965,429.81

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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.