Home / 809,935.29-1,117,722.51-470,403.54

Finding the Fourth Proportional to 809,935.29, 1,117,722.51 and 470,403.54

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Solution

The fourth proportional to 809,935.29, 1,117,722.51 and 470,403.54 is: 649,163.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,935.29 : 1,117,722.51 = 470,403.54 : x
  2. Step 2: Convert to fraction form
    809,935.29/1,117,722.51 = 470,403.54/x
  3. Step 3: Cross multiply
    809,935.29x = 1,117,722.51 × 470,403.54
  4. Step 4: Simplify right side
    809,935.29x = 525,780,625,441.69
  5. Step 5: Solve for x
    x = 525,780,625,441.69/809,935.29
  6. Step 6: Final answer
    x = 649,163.74

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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.