Home / 1,245,914.82-1,719,363.66-672,955

Finding the Fourth Proportional to 1,245,914.82, 1,719,363.66 and 672,955

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Solution

The fourth proportional to 1,245,914.82, 1,719,363.66 and 672,955 is: 928,678.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,914.82 : 1,719,363.66 = 672,955 : x
  2. Step 2: Convert to fraction form
    1,245,914.82/1,719,363.66 = 672,955/x
  3. Step 3: Cross multiply
    1,245,914.82x = 1,719,363.66 × 672,955
  4. Step 4: Simplify right side
    1,245,914.82x = 1,157,054,371,815.30
  5. Step 5: Solve for x
    x = 1,157,054,371,815.30/1,245,914.82
  6. Step 6: Final answer
    x = 928,678.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.