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Finding the Fourth Proportional to 377,104.86, 520,373.79 and 222,031.62

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Solution

The fourth proportional to 377,104.86, 520,373.79 and 222,031.62 is: 306,385.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,104.86 : 520,373.79 = 222,031.62 : x
  2. Step 2: Convert to fraction form
    377,104.86/520,373.79 = 222,031.62/x
  3. Step 3: Cross multiply
    377,104.86x = 520,373.79 × 222,031.62
  4. Step 4: Simplify right side
    377,104.86x = 115,539,435,599.24
  5. Step 5: Solve for x
    x = 115,539,435,599.24/377,104.86
  6. Step 6: Final answer
    x = 306,385.43

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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.