Home / 919,969.52-1,269,557.78-512,062.59

Finding the Fourth Proportional to 919,969.52, 1,269,557.78 and 512,062.59

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Solution

The fourth proportional to 919,969.52, 1,269,557.78 and 512,062.59 is: 706,646.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,969.52 : 1,269,557.78 = 512,062.59 : x
  2. Step 2: Convert to fraction form
    919,969.52/1,269,557.78 = 512,062.59/x
  3. Step 3: Cross multiply
    919,969.52x = 1,269,557.78 × 512,062.59
  4. Step 4: Simplify right side
    919,969.52x = 650,093,044,981.45
  5. Step 5: Solve for x
    x = 650,093,044,981.45/919,969.52
  6. Step 6: Final answer
    x = 706,646.29

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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.