Home / 1,555,196.84-2,331,916.36-643,863.92

Finding the Fourth Proportional to 1,555,196.84, 2,331,916.36 and 643,863.92

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Solution

The fourth proportional to 1,555,196.84, 2,331,916.36 and 643,863.92 is: 965,432.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555,196.84 : 2,331,916.36 = 643,863.92 : x
  2. Step 2: Convert to fraction form
    1,555,196.84/2,331,916.36 = 643,863.92/x
  3. Step 3: Cross multiply
    1,555,196.84x = 2,331,916.36 × 643,863.92
  4. Step 4: Simplify right side
    1,555,196.84x = 1,501,436,808,661.73
  5. Step 5: Solve for x
    x = 1,501,436,808,661.73/1,555,196.84
  6. Step 6: Final answer
    x = 965,432.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.