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Finding the Fourth Proportional to 618,998.88, 854,591.04 and 404,497.92

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Solution

The fourth proportional to 618,998.88, 854,591.04 and 404,497.92 is: 558,450.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,998.88 : 854,591.04 = 404,497.92 : x
  2. Step 2: Convert to fraction form
    618,998.88/854,591.04 = 404,497.92/x
  3. Step 3: Cross multiply
    618,998.88x = 854,591.04 × 404,497.92
  4. Step 4: Simplify right side
    618,998.88x = 345,680,298,130.64
  5. Step 5: Solve for x
    x = 345,680,298,130.64/618,998.88
  6. Step 6: Final answer
    x = 558,450.60

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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.