Home / 841,754.72-1,161,277.62-621,519.82

Finding the Fourth Proportional to 841,754.72, 1,161,277.62 and 621,519.82

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Solution

The fourth proportional to 841,754.72, 1,161,277.62 and 621,519.82 is: 857,443.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,754.72 : 1,161,277.62 = 621,519.82 : x
  2. Step 2: Convert to fraction form
    841,754.72/1,161,277.62 = 621,519.82/x
  3. Step 3: Cross multiply
    841,754.72x = 1,161,277.62 × 621,519.82
  4. Step 4: Simplify right side
    841,754.72x = 721,757,049,992.24
  5. Step 5: Solve for x
    x = 721,757,049,992.24/841,754.72
  6. Step 6: Final answer
    x = 857,443.43

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1.5x scale

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.