Home / 926,100.80-1,389,151.20-261,252.80

Finding the Fourth Proportional to 926,100.80, 1,389,151.20 and 261,252.80

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Solution

The fourth proportional to 926,100.80, 1,389,151.20 and 261,252.80 is: 391,879.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,100.80 : 1,389,151.20 = 261,252.80 : x
  2. Step 2: Convert to fraction form
    926,100.80/1,389,151.20 = 261,252.80/x
  3. Step 3: Cross multiply
    926,100.80x = 1,389,151.20 × 261,252.80
  4. Step 4: Simplify right side
    926,100.80x = 362,919,640,623.36
  5. Step 5: Solve for x
    x = 362,919,640,623.36/926,100.80
  6. Step 6: Final answer
    x = 391,879.20

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Double scale
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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.