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Finding the Fourth Proportional to 437,797.29, 603,930.42 and 356,216.79

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Solution

The fourth proportional to 437,797.29, 603,930.42 and 356,216.79 is: 491,392.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,797.29 : 603,930.42 = 356,216.79 : x
  2. Step 2: Convert to fraction form
    437,797.29/603,930.42 = 356,216.79/x
  3. Step 3: Cross multiply
    437,797.29x = 603,930.42 × 356,216.79
  4. Step 4: Simplify right side
    437,797.29x = 215,130,155,595.75
  5. Step 5: Solve for x
    x = 215,130,155,595.75/437,797.29
  6. Step 6: Final answer
    x = 491,392.16

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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.