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Finding the Fourth Proportional to 317,441.34, 476,155.85 and 77,556.83

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Solution

The fourth proportional to 317,441.34, 476,155.85 and 77,556.83 is: 116,333.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,441.34 : 476,155.85 = 77,556.83 : x
  2. Step 2: Convert to fraction form
    317,441.34/476,155.85 = 77,556.83/x
  3. Step 3: Cross multiply
    317,441.34x = 476,155.85 × 77,556.83
  4. Step 4: Simplify right side
    317,441.34x = 36,929,135,543.39
  5. Step 5: Solve for x
    x = 36,929,135,543.39/317,441.34
  6. Step 6: Final answer
    x = 116,333.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.