Home / 778,093.68-1,073,777.48-438,561.93

Finding the Fourth Proportional to 778,093.68, 1,073,777.48 and 438,561.93

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Solution

The fourth proportional to 778,093.68, 1,073,777.48 and 438,561.93 is: 605,220.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,093.68 : 1,073,777.48 = 438,561.93 : x
  2. Step 2: Convert to fraction form
    778,093.68/1,073,777.48 = 438,561.93/x
  3. Step 3: Cross multiply
    778,093.68x = 1,073,777.48 × 438,561.93
  4. Step 4: Simplify right side
    778,093.68x = 470,917,924,019.34
  5. Step 5: Solve for x
    x = 470,917,924,019.34/778,093.68
  6. Step 6: Final answer
    x = 605,220.09

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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.