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Finding the Fourth Proportional to 475,491.30, 656,245.20 and 294,261.60

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Solution

The fourth proportional to 475,491.30, 656,245.20 and 294,261.60 is: 406,122.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,491.30 : 656,245.20 = 294,261.60 : x
  2. Step 2: Convert to fraction form
    475,491.30/656,245.20 = 294,261.60/x
  3. Step 3: Cross multiply
    475,491.30x = 656,245.20 × 294,261.60
  4. Step 4: Simplify right side
    475,491.30x = 193,107,762,544.32
  5. Step 5: Solve for x
    x = 193,107,762,544.32/475,491.30
  6. Step 6: Final answer
    x = 406,122.60

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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.