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Finding the Fourth Proportional to 505,096.76, 697,023.32 and 275,658.60

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Solution

The fourth proportional to 505,096.76, 697,023.32 and 275,658.60 is: 380,403.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,096.76 : 697,023.32 = 275,658.60 : x
  2. Step 2: Convert to fraction form
    505,096.76/697,023.32 = 275,658.60/x
  3. Step 3: Cross multiply
    505,096.76x = 697,023.32 × 275,658.60
  4. Step 4: Simplify right side
    505,096.76x = 192,140,472,558.55
  5. Step 5: Solve for x
    x = 192,140,472,558.55/505,096.76
  6. Step 6: Final answer
    x = 380,403.30

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Double scale
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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.