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Finding the Fourth Proportional to 618,992.88, 854,582.76 and 404,491.92

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Solution

The fourth proportional to 618,992.88, 854,582.76 and 404,491.92 is: 558,442.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,992.88 : 854,582.76 = 404,491.92 : x
  2. Step 2: Convert to fraction form
    618,992.88/854,582.76 = 404,491.92/x
  3. Step 3: Cross multiply
    618,992.88x = 854,582.76 × 404,491.92
  4. Step 4: Simplify right side
    618,992.88x = 345,671,821,391.30
  5. Step 5: Solve for x
    x = 345,671,821,391.30/618,992.88
  6. Step 6: Final answer
    x = 558,442.32

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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.