Home / 857,511.70-1,183,438.83-475,661.50

Finding the Fourth Proportional to 857,511.70, 1,183,438.83 and 475,661.50

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Solution

The fourth proportional to 857,511.70, 1,183,438.83 and 475,661.50 is: 656,453.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,511.70 : 1,183,438.83 = 475,661.50 : x
  2. Step 2: Convert to fraction form
    857,511.70/1,183,438.83 = 475,661.50/x
  3. Step 3: Cross multiply
    857,511.70x = 1,183,438.83 × 475,661.50
  4. Step 4: Simplify right side
    857,511.70x = 562,916,289,036.05
  5. Step 5: Solve for x
    x = 562,916,289,036.05/857,511.70
  6. Step 6: Final answer
    x = 656,453.19

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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.