Home / 1,428,512.95-1,971,404.49-783,956.26

Finding the Fourth Proportional to 1,428,512.95, 1,971,404.49 and 783,956.26

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Solution

The fourth proportional to 1,428,512.95, 1,971,404.49 and 783,956.26 is: 1,081,890.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,512.95 : 1,971,404.49 = 783,956.26 : x
  2. Step 2: Convert to fraction form
    1,428,512.95/1,971,404.49 = 783,956.26/x
  3. Step 3: Cross multiply
    1,428,512.95x = 1,971,404.49 × 783,956.26
  4. Step 4: Simplify right side
    1,428,512.95x = 1,545,494,890,927.61
  5. Step 5: Solve for x
    x = 1,545,494,890,927.61/1,428,512.95
  6. Step 6: Final answer
    x = 1,081,890.71

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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.