Home / 1,211,935.26-1,672,395.51-668,042.94

Finding the Fourth Proportional to 1,211,935.26, 1,672,395.51 and 668,042.94

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Solution

The fourth proportional to 1,211,935.26, 1,672,395.51 and 668,042.94 is: 921,857.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,935.26 : 1,672,395.51 = 668,042.94 : x
  2. Step 2: Convert to fraction form
    1,211,935.26/1,672,395.51 = 668,042.94/x
  3. Step 3: Cross multiply
    1,211,935.26x = 1,672,395.51 × 668,042.94
  4. Step 4: Simplify right side
    1,211,935.26x = 1,117,232,013,343.20
  5. Step 5: Solve for x
    x = 1,117,232,013,343.20/1,211,935.26
  6. Step 6: Final answer
    x = 921,857.83

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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.