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Finding the Fourth Proportional to 450,808.48, 621,359.84 and 359,872.96

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Solution

The fourth proportional to 450,808.48, 621,359.84 and 359,872.96 is: 496,021.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,808.48 : 621,359.84 = 359,872.96 : x
  2. Step 2: Convert to fraction form
    450,808.48/621,359.84 = 359,872.96/x
  3. Step 3: Cross multiply
    450,808.48x = 621,359.84 × 359,872.96
  4. Step 4: Simplify right side
    450,808.48x = 223,610,604,845.93
  5. Step 5: Solve for x
    x = 223,610,604,845.93/450,808.48
  6. Step 6: Final answer
    x = 496,021.29

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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.