Home / 778,104.33-1,073,792.15-438,572.58

Finding the Fourth Proportional to 778,104.33, 1,073,792.15 and 438,572.58

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Solution

The fourth proportional to 778,104.33, 1,073,792.15 and 438,572.58 is: 605,234.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,104.33 : 1,073,792.15 = 438,572.58 : x
  2. Step 2: Convert to fraction form
    778,104.33/1,073,792.15 = 438,572.58/x
  3. Step 3: Cross multiply
    778,104.33x = 1,073,792.15 × 438,572.58
  4. Step 4: Simplify right side
    778,104.33x = 470,935,793,609.25
  5. Step 5: Solve for x
    x = 470,935,793,609.25/778,104.33
  6. Step 6: Final answer
    x = 605,234.77

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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.