Home / 1,326,866.09-1,989,120.45-517,063.05

Finding the Fourth Proportional to 1,326,866.09, 1,989,120.45 and 517,063.05

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Solution

The fourth proportional to 1,326,866.09, 1,989,120.45 and 517,063.05 is: 775,135.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,866.09 : 1,989,120.45 = 517,063.05 : x
  2. Step 2: Convert to fraction form
    1,326,866.09/1,989,120.45 = 517,063.05/x
  3. Step 3: Cross multiply
    1,326,866.09x = 1,989,120.45 × 517,063.05
  4. Step 4: Simplify right side
    1,326,866.09x = 1,028,500,686,694.37
  5. Step 5: Solve for x
    x = 1,028,500,686,694.37/1,326,866.09
  6. Step 6: Final answer
    x = 775,135.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.