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Finding the Fourth Proportional to 377,198.30, 520,494.28 and 216,060.14

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Solution

The fourth proportional to 377,198.30, 520,494.28 and 216,060.14 is: 298,140.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,198.30 : 520,494.28 = 216,060.14 : x
  2. Step 2: Convert to fraction form
    377,198.30/520,494.28 = 216,060.14/x
  3. Step 3: Cross multiply
    377,198.30x = 520,494.28 × 216,060.14
  4. Step 4: Simplify right side
    377,198.30x = 112,458,064,403.53
  5. Step 5: Solve for x
    x = 112,458,064,403.53/377,198.30
  6. Step 6: Final answer
    x = 298,140.44

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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.