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Finding the Fourth Proportional to 342,687.62, 473,158.40 and 275,076.51

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Solution

The fourth proportional to 342,687.62, 473,158.40 and 275,076.51 is: 379,805.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,687.62 : 473,158.40 = 275,076.51 : x
  2. Step 2: Convert to fraction form
    342,687.62/473,158.40 = 275,076.51/x
  3. Step 3: Cross multiply
    342,687.62x = 473,158.40 × 275,076.51
  4. Step 4: Simplify right side
    342,687.62x = 130,154,759,973.80
  5. Step 5: Solve for x
    x = 130,154,759,973.80/342,687.62
  6. Step 6: Final answer
    x = 379,805.85

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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.