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Finding the Fourth Proportional to 633,390.86, 874,093.53 and 361,453.34

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Solution

The fourth proportional to 633,390.86, 874,093.53 and 361,453.34 is: 498,813.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,390.86 : 874,093.53 = 361,453.34 : x
  2. Step 2: Convert to fraction form
    633,390.86/874,093.53 = 361,453.34/x
  3. Step 3: Cross multiply
    633,390.86x = 874,093.53 × 361,453.34
  4. Step 4: Simplify right side
    633,390.86x = 315,944,021,520.42
  5. Step 5: Solve for x
    x = 315,944,021,520.42/633,390.86
  6. Step 6: Final answer
    x = 498,813.68

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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.