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Finding the Fourth Proportional to 311,228.40, 466,842.60 and 153,764.40

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Solution

The fourth proportional to 311,228.40, 466,842.60 and 153,764.40 is: 230,646.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,228.40 : 466,842.60 = 153,764.40 : x
  2. Step 2: Convert to fraction form
    311,228.40/466,842.60 = 153,764.40/x
  3. Step 3: Cross multiply
    311,228.40x = 466,842.60 × 153,764.40
  4. Step 4: Simplify right side
    311,228.40x = 71,783,772,283.44
  5. Step 5: Solve for x
    x = 71,783,772,283.44/311,228.40
  6. Step 6: Final answer
    x = 230,646.60

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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.