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Finding the Fourth Proportional to 885,782.73, 1,326,676.49 and 411,469.95

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Solution

The fourth proportional to 885,782.73, 1,326,676.49 and 411,469.95 is: 616,276.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,782.73 : 1,326,676.49 = 411,469.95 : x
  2. Step 2: Convert to fraction form
    885,782.73/1,326,676.49 = 411,469.95/x
  3. Step 3: Cross multiply
    885,782.73x = 1,326,676.49 × 411,469.95
  4. Step 4: Simplify right side
    885,782.73x = 545,887,509,006.48
  5. Step 5: Solve for x
    x = 545,887,509,006.48/885,782.73
  6. Step 6: Final answer
    x = 616,276.98

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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.