Home / 1,289,009.58-1,778,772.87-716,084.70

Finding the Fourth Proportional to 1,289,009.58, 1,778,772.87 and 716,084.70

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Solution

The fourth proportional to 1,289,009.58, 1,778,772.87 and 716,084.70 is: 988,163.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,009.58 : 1,778,772.87 = 716,084.70 : x
  2. Step 2: Convert to fraction form
    1,289,009.58/1,778,772.87 = 716,084.70/x
  3. Step 3: Cross multiply
    1,289,009.58x = 1,778,772.87 × 716,084.70
  4. Step 4: Simplify right side
    1,289,009.58x = 1,273,752,036,982.09
  5. Step 5: Solve for x
    x = 1,273,752,036,982.09/1,289,009.58
  6. Step 6: Final answer
    x = 988,163.36

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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.