Home / 1,289,338.20-1,934,007.30-1,179,113.40

Finding the Fourth Proportional to 1,289,338.20, 1,934,007.30 and 1,179,113.40

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Solution

The fourth proportional to 1,289,338.20, 1,934,007.30 and 1,179,113.40 is: 1,768,670.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,338.20 : 1,934,007.30 = 1,179,113.40 : x
  2. Step 2: Convert to fraction form
    1,289,338.20/1,934,007.30 = 1,179,113.40/x
  3. Step 3: Cross multiply
    1,289,338.20x = 1,934,007.30 × 1,179,113.40
  4. Step 4: Simplify right side
    1,289,338.20x = 2,280,413,923,127.82
  5. Step 5: Solve for x
    x = 2,280,413,923,127.82/1,289,338.20
  6. Step 6: Final answer
    x = 1,768,670.10

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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.