Home / 1,243,700.80-1,864,168.80-683,137.60

Finding the Fourth Proportional to 1,243,700.80, 1,864,168.80 and 683,137.60

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Solution

The fourth proportional to 1,243,700.80, 1,864,168.80 and 683,137.60 is: 1,023,947.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,700.80 : 1,864,168.80 = 683,137.60 : x
  2. Step 2: Convert to fraction form
    1,243,700.80/1,864,168.80 = 683,137.60/x
  3. Step 3: Cross multiply
    1,243,700.80x = 1,864,168.80 × 683,137.60
  4. Step 4: Simplify right side
    1,243,700.80x = 1,273,483,800,026.88
  5. Step 5: Solve for x
    x = 1,273,483,800,026.88/1,243,700.80
  6. Step 6: Final answer
    x = 1,023,947.08

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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.