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Finding the Fourth Proportional to 527,575.26, 728,054.52 and 285,857.77

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Solution

The fourth proportional to 527,575.26, 728,054.52 and 285,857.77 is: 394,484.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,575.26 : 728,054.52 = 285,857.77 : x
  2. Step 2: Convert to fraction form
    527,575.26/728,054.52 = 285,857.77/x
  3. Step 3: Cross multiply
    527,575.26x = 728,054.52 × 285,857.77
  4. Step 4: Simplify right side
    527,575.26x = 208,120,041,525.62
  5. Step 5: Solve for x
    x = 208,120,041,525.62/527,575.26
  6. Step 6: Final answer
    x = 394,484.08

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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.