Home / 644,637.12-966,954.42-171,322.47

Finding the Fourth Proportional to 644,637.12, 966,954.42 and 171,322.47

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Solution

The fourth proportional to 644,637.12, 966,954.42 and 171,322.47 is: 256,983.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,637.12 : 966,954.42 = 171,322.47 : x
  2. Step 2: Convert to fraction form
    644,637.12/966,954.42 = 171,322.47/x
  3. Step 3: Cross multiply
    644,637.12x = 966,954.42 × 171,322.47
  4. Step 4: Simplify right side
    644,637.12x = 165,661,019,611.82
  5. Step 5: Solve for x
    x = 165,661,019,611.82/644,637.12
  6. Step 6: Final answer
    x = 256,983.37

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1.5x scale

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.