Home / 515,724.09-773,410.93-178,686.08

Finding the Fourth Proportional to 515,724.09, 773,410.93 and 178,686.08

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Solution

The fourth proportional to 515,724.09, 773,410.93 and 178,686.08 is: 267,968.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,724.09 : 773,410.93 = 178,686.08 : x
  2. Step 2: Convert to fraction form
    515,724.09/773,410.93 = 178,686.08/x
  3. Step 3: Cross multiply
    515,724.09x = 773,410.93 × 178,686.08
  4. Step 4: Simplify right side
    515,724.09x = 138,197,763,667.16
  5. Step 5: Solve for x
    x = 138,197,763,667.16/515,724.09
  6. Step 6: Final answer
    x = 267,968.41

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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.