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Finding the Fourth Proportional to 447,890.77, 618,089.26 and 246,686.77

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Solution

The fourth proportional to 447,890.77, 618,089.26 and 246,686.77 is: 340,427.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,890.77 : 618,089.26 = 246,686.77 : x
  2. Step 2: Convert to fraction form
    447,890.77/618,089.26 = 246,686.77/x
  3. Step 3: Cross multiply
    447,890.77x = 618,089.26 × 246,686.77
  4. Step 4: Simplify right side
    447,890.77x = 152,474,439,568.96
  5. Step 5: Solve for x
    x = 152,474,439,568.96/447,890.77
  6. Step 6: Final answer
    x = 340,427.74

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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.