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Finding the Fourth Proportional to 505,394.66, 697,439.32 and 275,951.23

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Solution

The fourth proportional to 505,394.66, 697,439.32 and 275,951.23 is: 380,809.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,394.66 : 697,439.32 = 275,951.23 : x
  2. Step 2: Convert to fraction form
    505,394.66/697,439.32 = 275,951.23/x
  3. Step 3: Cross multiply
    505,394.66x = 697,439.32 × 275,951.23
  4. Step 4: Simplify right side
    505,394.66x = 192,459,235,770.89
  5. Step 5: Solve for x
    x = 192,459,235,770.89/505,394.66
  6. Step 6: Final answer
    x = 380,809.79

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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.