Home / 778,105.58-1,073,793.87-438,573.83

Finding the Fourth Proportional to 778,105.58, 1,073,793.87 and 438,573.83

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Solution

The fourth proportional to 778,105.58, 1,073,793.87 and 438,573.83 is: 605,236.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,105.58 : 1,073,793.87 = 438,573.83 : x
  2. Step 2: Convert to fraction form
    778,105.58/1,073,793.87 = 438,573.83/x
  3. Step 3: Cross multiply
    778,105.58x = 1,073,793.87 × 438,573.83
  4. Step 4: Simplify right side
    778,105.58x = 470,937,884,827.45
  5. Step 5: Solve for x
    x = 470,937,884,827.45/778,105.58
  6. Step 6: Final answer
    x = 605,236.49

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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.