Home / 383,131.14-528,683.13-213,381.06

Finding the Fourth Proportional to 383,131.14, 528,683.13 and 213,381.06

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Solution

The fourth proportional to 383,131.14, 528,683.13 and 213,381.06 is: 294,444.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,131.14 : 528,683.13 = 213,381.06 : x
  2. Step 2: Convert to fraction form
    383,131.14/528,683.13 = 213,381.06/x
  3. Step 3: Cross multiply
    383,131.14x = 528,683.13 × 213,381.06
  4. Step 4: Simplify right side
    383,131.14x = 112,810,966,683.52
  5. Step 5: Solve for x
    x = 112,810,966,683.52/383,131.14
  6. Step 6: Final answer
    x = 294,444.79

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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.