Home / 778,093.11-1,073,776.70-438,561.36

Finding the Fourth Proportional to 778,093.11, 1,073,776.70 and 438,561.36

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Solution

The fourth proportional to 778,093.11, 1,073,776.70 and 438,561.36 is: 605,219.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,093.11 : 1,073,776.70 = 438,561.36 : x
  2. Step 2: Convert to fraction form
    778,093.11/1,073,776.70 = 438,561.36/x
  3. Step 3: Cross multiply
    778,093.11x = 1,073,776.70 × 438,561.36
  4. Step 4: Simplify right side
    778,093.11x = 470,916,969,888.31
  5. Step 5: Solve for x
    x = 470,916,969,888.31/778,093.11
  6. Step 6: Final answer
    x = 605,219.30

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1.5x scale

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.