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Finding the Fourth Proportional to 689,671.73, 951,604.35 and 403,136.39

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Solution

The fourth proportional to 689,671.73, 951,604.35 and 403,136.39 is: 556,244.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,671.73 : 951,604.35 = 403,136.39 : x
  2. Step 2: Convert to fraction form
    689,671.73/951,604.35 = 403,136.39/x
  3. Step 3: Cross multiply
    689,671.73x = 951,604.35 × 403,136.39
  4. Step 4: Simplify right side
    689,671.73x = 383,626,342,367.30
  5. Step 5: Solve for x
    x = 383,626,342,367.30/689,671.73
  6. Step 6: Final answer
    x = 556,244.84

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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.