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Finding the Fourth Proportional to 500,497.04, 690,694.92 and 274,127.96

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Solution

The fourth proportional to 500,497.04, 690,694.92 and 274,127.96 is: 378,301.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,497.04 : 690,694.92 = 274,127.96 : x
  2. Step 2: Convert to fraction form
    500,497.04/690,694.92 = 274,127.96/x
  3. Step 3: Cross multiply
    500,497.04x = 690,694.92 × 274,127.96
  4. Step 4: Simplify right side
    500,497.04x = 189,338,789,401.96
  5. Step 5: Solve for x
    x = 189,338,789,401.96/500,497.04
  6. Step 6: Final answer
    x = 378,301.52

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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.