Home / 885,712.40-1,328,568.60-436,518.80

Finding the Fourth Proportional to 885,712.40, 1,328,568.60 and 436,518.80

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Solution

The fourth proportional to 885,712.40, 1,328,568.60 and 436,518.80 is: 654,778.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,712.40 : 1,328,568.60 = 436,518.80 : x
  2. Step 2: Convert to fraction form
    885,712.40/1,328,568.60 = 436,518.80/x
  3. Step 3: Cross multiply
    885,712.40x = 1,328,568.60 × 436,518.80
  4. Step 4: Simplify right side
    885,712.40x = 579,945,170,989.68
  5. Step 5: Solve for x
    x = 579,945,170,989.68/885,712.40
  6. Step 6: Final answer
    x = 654,778.20

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Similar ratio
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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.