Home / 778,736.40-1,169,180.32-538,257.92

Finding the Fourth Proportional to 778,736.40, 1,169,180.32 and 538,257.92

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Solution

The fourth proportional to 778,736.40, 1,169,180.32 and 538,257.92 is: 808,130.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,736.40 : 1,169,180.32 = 538,257.92 : x
  2. Step 2: Convert to fraction form
    778,736.40/1,169,180.32 = 538,257.92/x
  3. Step 3: Cross multiply
    778,736.40x = 1,169,180.32 × 538,257.92
  4. Step 4: Simplify right side
    778,736.40x = 629,320,567,148.14
  5. Step 5: Solve for x
    x = 629,320,567,148.14/778,736.40
  6. Step 6: Final answer
    x = 808,130.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.