Home / 636,786.54-878,733.66-350,299.26

Finding the Fourth Proportional to 636,786.54, 878,733.66 and 350,299.26

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Solution

The fourth proportional to 636,786.54, 878,733.66 and 350,299.26 is: 483,395.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,786.54 : 878,733.66 = 350,299.26 : x
  2. Step 2: Convert to fraction form
    636,786.54/878,733.66 = 350,299.26/x
  3. Step 3: Cross multiply
    636,786.54x = 878,733.66 × 350,299.26
  4. Step 4: Simplify right side
    636,786.54x = 307,819,750,835.09
  5. Step 5: Solve for x
    x = 307,819,750,835.09/636,786.54
  6. Step 6: Final answer
    x = 483,395.50

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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.