Home / 385,015.68-531,306.48-212,922.48

Finding the Fourth Proportional to 385,015.68, 531,306.48 and 212,922.48

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Solution

The fourth proportional to 385,015.68, 531,306.48 and 212,922.48 is: 293,824.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,015.68 : 531,306.48 = 212,922.48 : x
  2. Step 2: Convert to fraction form
    385,015.68/531,306.48 = 212,922.48/x
  3. Step 3: Cross multiply
    385,015.68x = 531,306.48 × 212,922.48
  4. Step 4: Simplify right side
    385,015.68x = 113,127,093,361.67
  5. Step 5: Solve for x
    x = 113,127,093,361.67/385,015.68
  6. Step 6: Final answer
    x = 293,824.64

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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.