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Finding the Fourth Proportional to 331,779.84, 457,855.90 and 180,876.84

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Solution

The fourth proportional to 331,779.84, 457,855.90 and 180,876.84 is: 249,609.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,779.84 : 457,855.90 = 180,876.84 : x
  2. Step 2: Convert to fraction form
    331,779.84/457,855.90 = 180,876.84/x
  3. Step 3: Cross multiply
    331,779.84x = 457,855.90 × 180,876.84
  4. Step 4: Simplify right side
    331,779.84x = 82,815,528,367.36
  5. Step 5: Solve for x
    x = 82,815,528,367.36/331,779.84
  6. Step 6: Final answer
    x = 249,609.89

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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.