Home / 919,975.87-1,269,581.06-512,082.14

Finding the Fourth Proportional to 919,975.87, 1,269,581.06 and 512,082.14

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Solution

The fourth proportional to 919,975.87, 1,269,581.06 and 512,082.14 is: 706,681.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,975.87 : 1,269,581.06 = 512,082.14 : x
  2. Step 2: Convert to fraction form
    919,975.87/1,269,581.06 = 512,082.14/x
  3. Step 3: Cross multiply
    919,975.87x = 1,269,581.06 × 512,082.14
  4. Step 4: Simplify right side
    919,975.87x = 650,129,786,108.27
  5. Step 5: Solve for x
    x = 650,129,786,108.27/919,975.87
  6. Step 6: Final answer
    x = 706,681.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.