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Finding the Fourth Proportional to 572,578.80, 858,965.40 and 173,216.40

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Solution

The fourth proportional to 572,578.80, 858,965.40 and 173,216.40 is: 259,854.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,578.80 : 858,965.40 = 173,216.40 : x
  2. Step 2: Convert to fraction form
    572,578.80/858,965.40 = 173,216.40/x
  3. Step 3: Cross multiply
    572,578.80x = 858,965.40 × 173,216.40
  4. Step 4: Simplify right side
    572,578.80x = 148,786,894,312.56
  5. Step 5: Solve for x
    x = 148,786,894,312.56/572,578.80
  6. Step 6: Final answer
    x = 259,854.00

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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.