Home / 778,102.08-1,073,789.04-438,570.33

Finding the Fourth Proportional to 778,102.08, 1,073,789.04 and 438,570.33

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Solution

The fourth proportional to 778,102.08, 1,073,789.04 and 438,570.33 is: 605,231.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,102.08 : 1,073,789.04 = 438,570.33 : x
  2. Step 2: Convert to fraction form
    778,102.08/1,073,789.04 = 438,570.33/x
  3. Step 3: Cross multiply
    778,102.08x = 1,073,789.04 × 438,570.33
  4. Step 4: Simplify right side
    778,102.08x = 470,932,013,623.18
  5. Step 5: Solve for x
    x = 470,932,013,623.18/778,102.08
  6. Step 6: Final answer
    x = 605,231.66

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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.