Home / 691,332.78-1,036,999.80-192,696.78

Finding the Fourth Proportional to 691,332.78, 1,036,999.80 and 192,696.78

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Solution

The fourth proportional to 691,332.78, 1,036,999.80 and 192,696.78 is: 289,045.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,332.78 : 1,036,999.80 = 192,696.78 : x
  2. Step 2: Convert to fraction form
    691,332.78/1,036,999.80 = 192,696.78/x
  3. Step 3: Cross multiply
    691,332.78x = 1,036,999.80 × 192,696.78
  4. Step 4: Simplify right side
    691,332.78x = 199,826,522,320.64
  5. Step 5: Solve for x
    x = 199,826,522,320.64/691,332.78
  6. Step 6: Final answer
    x = 289,045.35

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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.