Home / 1,309,410.95-1,965,166.19-678,505.19

Finding the Fourth Proportional to 1,309,410.95, 1,965,166.19 and 678,505.19

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Solution

The fourth proportional to 1,309,410.95, 1,965,166.19 and 678,505.19 is: 1,018,301.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,410.95 : 1,965,166.19 = 678,505.19 : x
  2. Step 2: Convert to fraction form
    1,309,410.95/1,965,166.19 = 678,505.19/x
  3. Step 3: Cross multiply
    1,309,410.95x = 1,965,166.19 × 678,505.19
  4. Step 4: Simplify right side
    1,309,410.95x = 1,333,375,463,192.31
  5. Step 5: Solve for x
    x = 1,333,375,463,192.31/1,309,410.95
  6. Step 6: Final answer
    x = 1,018,301.75

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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.