Home / 786,589.84-1,086,562.45-616,653.26

Finding the Fourth Proportional to 786,589.84, 1,086,562.45 and 616,653.26

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Solution

The fourth proportional to 786,589.84, 1,086,562.45 and 616,653.26 is: 851,819.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,589.84 : 1,086,562.45 = 616,653.26 : x
  2. Step 2: Convert to fraction form
    786,589.84/1,086,562.45 = 616,653.26/x
  3. Step 3: Cross multiply
    786,589.84x = 1,086,562.45 × 616,653.26
  4. Step 4: Simplify right side
    786,589.84x = 670,032,276,986.09
  5. Step 5: Solve for x
    x = 670,032,276,986.09/786,589.84
  6. Step 6: Final answer
    x = 851,819.13

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1.5x scale

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.