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Finding the Fourth Proportional to 371,900.40, 557,850.60 and 230,182.80

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Solution

The fourth proportional to 371,900.40, 557,850.60 and 230,182.80 is: 345,274.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,900.40 : 557,850.60 = 230,182.80 : x
  2. Step 2: Convert to fraction form
    371,900.40/557,850.60 = 230,182.80/x
  3. Step 3: Cross multiply
    371,900.40x = 557,850.60 × 230,182.80
  4. Step 4: Simplify right side
    371,900.40x = 128,407,613,089.68
  5. Step 5: Solve for x
    x = 128,407,613,089.68/371,900.40
  6. Step 6: Final answer
    x = 345,274.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.