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Finding the Fourth Proportional to 256,110.80, 383,291.40 and 235,115.60

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Solution

The fourth proportional to 256,110.80, 383,291.40 and 235,115.60 is: 351,870.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,110.80 : 383,291.40 = 235,115.60 : x
  2. Step 2: Convert to fraction form
    256,110.80/383,291.40 = 235,115.60/x
  3. Step 3: Cross multiply
    256,110.80x = 383,291.40 × 235,115.60
  4. Step 4: Simplify right side
    256,110.80x = 90,117,787,485.84
  5. Step 5: Solve for x
    x = 90,117,787,485.84/256,110.80
  6. Step 6: Final answer
    x = 351,870.31

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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.