Home / 926,191.80-1,389,287.70-261,343.80

Finding the Fourth Proportional to 926,191.80, 1,389,287.70 and 261,343.80

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Solution

The fourth proportional to 926,191.80, 1,389,287.70 and 261,343.80 is: 392,015.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,191.80 : 1,389,287.70 = 261,343.80 : x
  2. Step 2: Convert to fraction form
    926,191.80/1,389,287.70 = 261,343.80/x
  3. Step 3: Cross multiply
    926,191.80x = 1,389,287.70 × 261,343.80
  4. Step 4: Simplify right side
    926,191.80x = 363,081,726,811.26
  5. Step 5: Solve for x
    x = 363,081,726,811.26/926,191.80
  6. Step 6: Final answer
    x = 392,015.70

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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.