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Finding the Fourth Proportional to 572,580.80, 858,968.40 and 173,218.40

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Solution

The fourth proportional to 572,580.80, 858,968.40 and 173,218.40 is: 259,857.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,580.80 : 858,968.40 = 173,218.40 : x
  2. Step 2: Convert to fraction form
    572,580.80/858,968.40 = 173,218.40/x
  3. Step 3: Cross multiply
    572,580.80x = 858,968.40 × 173,218.40
  4. Step 4: Simplify right side
    572,580.80x = 148,789,131,898.56
  5. Step 5: Solve for x
    x = 148,789,131,898.56/572,580.80
  6. Step 6: Final answer
    x = 259,857.01

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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.