Home / 643,196.83-964,934.55-193,880.11

Finding the Fourth Proportional to 643,196.83, 964,934.55 and 193,880.11

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Solution

The fourth proportional to 643,196.83, 964,934.55 and 193,880.11 is: 290,862.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,196.83 : 964,934.55 = 193,880.11 : x
  2. Step 2: Convert to fraction form
    643,196.83/964,934.55 = 193,880.11/x
  3. Step 3: Cross multiply
    643,196.83x = 964,934.55 × 193,880.11
  4. Step 4: Simplify right side
    643,196.83x = 187,081,616,696.80
  5. Step 5: Solve for x
    x = 187,081,616,696.80/643,196.83
  6. Step 6: Final answer
    x = 290,862.16

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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.