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Finding the Fourth Proportional to 709,507,297.44, 972,008,748.32 and 682,980,474.60

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Solution

The fourth proportional to 709,507,297.44, 972,008,748.32 and 682,980,474.60 is: 935,667,608.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,507,297.44 : 972,008,748.32 = 682,980,474.60 : x
  2. Step 2: Convert to fraction form
    709,507,297.44/972,008,748.32 = 682,980,474.60/x
  3. Step 3: Cross multiply
    709,507,297.44x = 972,008,748.32 × 682,980,474.60
  4. Step 4: Simplify right side
    709,507,297.44x = 663,862,996,242,945,664
  5. Step 5: Solve for x
    x = 663,862,996,242,945,664/709,507,297.44
  6. Step 6: Final answer
    x = 935,667,608.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.