Home / 1,211,461.27-1,671,827.61-667,616.56

Finding the Fourth Proportional to 1,211,461.27, 1,671,827.61 and 667,616.56

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Solution

The fourth proportional to 1,211,461.27, 1,671,827.61 and 667,616.56 is: 921,316.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,461.27 : 1,671,827.61 = 667,616.56 : x
  2. Step 2: Convert to fraction form
    1,211,461.27/1,671,827.61 = 667,616.56/x
  3. Step 3: Cross multiply
    1,211,461.27x = 1,671,827.61 × 667,616.56
  4. Step 4: Simplify right side
    1,211,461.27x = 1,116,139,797,901.22
  5. Step 5: Solve for x
    x = 1,116,139,797,901.22/1,211,461.27
  6. Step 6: Final answer
    x = 921,316.95

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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.