Home / 1,689,035.20-2,533,984.80-1,191,371.20

Finding the Fourth Proportional to 1,689,035.20, 2,533,984.80 and 1,191,371.20

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Solution

The fourth proportional to 1,689,035.20, 2,533,984.80 and 1,191,371.20 is: 1,787,361.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,689,035.20 : 2,533,984.80 = 1,191,371.20 : x
  2. Step 2: Convert to fraction form
    1,689,035.20/2,533,984.80 = 1,191,371.20/x
  3. Step 3: Cross multiply
    1,689,035.20x = 2,533,984.80 × 1,191,371.20
  4. Step 4: Simplify right side
    1,689,035.20x = 3,018,916,511,957.76
  5. Step 5: Solve for x
    x = 3,018,916,511,957.76/1,689,035.20
  6. Step 6: Final answer
    x = 1,787,361.51

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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.