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Finding the Fourth Proportional to 483,488.64, 667,111.68 and 282,193.92

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Solution

The fourth proportional to 483,488.64, 667,111.68 and 282,193.92 is: 389,367.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,488.64 : 667,111.68 = 282,193.92 : x
  2. Step 2: Convert to fraction form
    483,488.64/667,111.68 = 282,193.92/x
  3. Step 3: Cross multiply
    483,488.64x = 667,111.68 × 282,193.92
  4. Step 4: Simplify right side
    483,488.64x = 188,254,860,056.99
  5. Step 5: Solve for x
    x = 188,254,860,056.99/483,488.64
  6. Step 6: Final answer
    x = 389,367.70

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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.