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Finding the Fourth Proportional to 449,419.14, 674,130.56 and 112,458.87

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Solution

The fourth proportional to 449,419.14, 674,130.56 and 112,458.87 is: 168,688.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,419.14 : 674,130.56 = 112,458.87 : x
  2. Step 2: Convert to fraction form
    449,419.14/674,130.56 = 112,458.87/x
  3. Step 3: Cross multiply
    449,419.14x = 674,130.56 × 112,458.87
  4. Step 4: Simplify right side
    449,419.14x = 75,811,960,447.77
  5. Step 5: Solve for x
    x = 75,811,960,447.77/449,419.14
  6. Step 6: Final answer
    x = 168,688.77

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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.