Home / 731,192,366.12-1,089,188,942.29-691,588,595.48

Finding the Fourth Proportional to 731,192,366.12, 1,089,188,942.29 and 691,588,595.48

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Solution

The fourth proportional to 731,192,366.12, 1,089,188,942.29 and 691,588,595.48 is: 1,030,194,905.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,192,366.12 : 1,089,188,942.29 = 691,588,595.48 : x
  2. Step 2: Convert to fraction form
    731,192,366.12/1,089,188,942.29 = 691,588,595.48/x
  3. Step 3: Cross multiply
    731,192,366.12x = 1,089,188,942.29 × 691,588,595.48
  4. Step 4: Simplify right side
    731,192,366.12x = 753,270,650,810,687,872
  5. Step 5: Solve for x
    x = 753,270,650,810,687,872/731,192,366.12
  6. Step 6: Final answer
    x = 1,030,194,905.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.