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Finding the Fourth Proportional to 572,578.01, 858,735.78 and 257,125.13

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Solution

The fourth proportional to 572,578.01, 858,735.78 and 257,125.13 is: 385,628.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,578.01 : 858,735.78 = 257,125.13 : x
  2. Step 2: Convert to fraction form
    572,578.01/858,735.78 = 257,125.13/x
  3. Step 3: Cross multiply
    572,578.01x = 858,735.78 × 257,125.13
  4. Step 4: Simplify right side
    572,578.01x = 220,802,544,774.47
  5. Step 5: Solve for x
    x = 220,802,544,774.47/572,578.01
  6. Step 6: Final answer
    x = 385,628.76

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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.