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Finding the Fourth Proportional to 584,780.57, 806,911.30 and 326,625.71

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Solution

The fourth proportional to 584,780.57, 806,911.30 and 326,625.71 is: 450,695.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,780.57 : 806,911.30 = 326,625.71 : x
  2. Step 2: Convert to fraction form
    584,780.57/806,911.30 = 326,625.71/x
  3. Step 3: Cross multiply
    584,780.57x = 806,911.30 × 326,625.71
  4. Step 4: Simplify right side
    584,780.57x = 263,557,971,418.40
  5. Step 5: Solve for x
    x = 263,557,971,418.40/584,780.57
  6. Step 6: Final answer
    x = 450,695.50

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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.