Home / 274,673.13-379,072.76-153,812.22

Finding the Fourth Proportional to 274,673.13, 379,072.76 and 153,812.22

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Solution

The fourth proportional to 274,673.13, 379,072.76 and 153,812.22 is: 212,274.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,673.13 : 379,072.76 = 153,812.22 : x
  2. Step 2: Convert to fraction form
    274,673.13/379,072.76 = 153,812.22/x
  3. Step 3: Cross multiply
    274,673.13x = 379,072.76 × 153,812.22
  4. Step 4: Simplify right side
    274,673.13x = 58,306,021,431.74
  5. Step 5: Solve for x
    x = 58,306,021,431.74/274,673.13
  6. Step 6: Final answer
    x = 212,274.21

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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.