Home / 778,104.58-1,073,792.49-438,572.83

Finding the Fourth Proportional to 778,104.58, 1,073,792.49 and 438,572.83

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Solution

The fourth proportional to 778,104.58, 1,073,792.49 and 438,572.83 is: 605,235.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,104.58 : 1,073,792.49 = 438,572.83 : x
  2. Step 2: Convert to fraction form
    778,104.58/1,073,792.49 = 438,572.83/x
  3. Step 3: Cross multiply
    778,104.58x = 1,073,792.49 × 438,572.83
  4. Step 4: Simplify right side
    778,104.58x = 470,936,211,172.05
  5. Step 5: Solve for x
    x = 470,936,211,172.05/778,104.58
  6. Step 6: Final answer
    x = 605,235.11

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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.