Home / 382,938.30-528,110.82-239,711.40

Finding the Fourth Proportional to 382,938.30, 528,110.82 and 239,711.40

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Solution

The fourth proportional to 382,938.30, 528,110.82 and 239,711.40 is: 330,586.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,938.30 : 528,110.82 = 239,711.40 : x
  2. Step 2: Convert to fraction form
    382,938.30/528,110.82 = 239,711.40/x
  3. Step 3: Cross multiply
    382,938.30x = 528,110.82 × 239,711.40
  4. Step 4: Simplify right side
    382,938.30x = 126,594,184,017.35
  5. Step 5: Solve for x
    x = 126,594,184,017.35/382,938.30
  6. Step 6: Final answer
    x = 330,586.37

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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.