Home / 1,211,683.88-1,672,055.52-667,818.02

Finding the Fourth Proportional to 1,211,683.88, 1,672,055.52 and 667,818.02

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Solution

The fourth proportional to 1,211,683.88, 1,672,055.52 and 667,818.02 is: 921,551.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,683.88 : 1,672,055.52 = 667,818.02 : x
  2. Step 2: Convert to fraction form
    1,211,683.88/1,672,055.52 = 667,818.02/x
  3. Step 3: Cross multiply
    1,211,683.88x = 1,672,055.52 × 667,818.02
  4. Step 4: Simplify right side
    1,211,683.88x = 1,116,628,806,696.47
  5. Step 5: Solve for x
    x = 1,116,628,806,696.47/1,211,683.88
  6. Step 6: Final answer
    x = 921,551.26

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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.