Home / 385,504.56-531,721.80-234,611.28

Finding the Fourth Proportional to 385,504.56, 531,721.80 and 234,611.28

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Solution

The fourth proportional to 385,504.56, 531,721.80 and 234,611.28 is: 323,596.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,504.56 : 531,721.80 = 234,611.28 : x
  2. Step 2: Convert to fraction form
    385,504.56/531,721.80 = 234,611.28/x
  3. Step 3: Cross multiply
    385,504.56x = 531,721.80 × 234,611.28
  4. Step 4: Simplify right side
    385,504.56x = 124,747,932,101.90
  5. Step 5: Solve for x
    x = 124,747,932,101.90/385,504.56
  6. Step 6: Final answer
    x = 323,596.51

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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.