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Finding the Fourth Proportional to 644,083.98, 888,863.68 and 357,604.12

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Solution

The fourth proportional to 644,083.98, 888,863.68 and 357,604.12 is: 493,509.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,083.98 : 888,863.68 = 357,604.12 : x
  2. Step 2: Convert to fraction form
    644,083.98/888,863.68 = 357,604.12/x
  3. Step 3: Cross multiply
    644,083.98x = 888,863.68 × 357,604.12
  4. Step 4: Simplify right side
    644,083.98x = 317,861,314,086.36
  5. Step 5: Solve for x
    x = 317,861,314,086.36/644,083.98
  6. Step 6: Final answer
    x = 493,509.11

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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.