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Finding the Fourth Proportional to 574,862.69, 862,662.97 and 385,536.77

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Solution

The fourth proportional to 574,862.69, 862,662.97 and 385,536.77 is: 578,552.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,862.69 : 862,662.97 = 385,536.77 : x
  2. Step 2: Convert to fraction form
    574,862.69/862,662.97 = 385,536.77/x
  3. Step 3: Cross multiply
    574,862.69x = 862,662.97 × 385,536.77
  4. Step 4: Simplify right side
    574,862.69x = 332,588,289,775.25
  5. Step 5: Solve for x
    x = 332,588,289,775.25/574,862.69
  6. Step 6: Final answer
    x = 578,552.58

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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.