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Finding the Fourth Proportional to 527,576.48, 728,053.07 and 285,859.06

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Solution

The fourth proportional to 527,576.48, 728,053.07 and 285,859.06 is: 394,484.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,576.48 : 728,053.07 = 285,859.06 : x
  2. Step 2: Convert to fraction form
    527,576.48/728,053.07 = 285,859.06/x
  3. Step 3: Cross multiply
    527,576.48x = 728,053.07 × 285,859.06
  4. Step 4: Simplify right side
    527,576.48x = 208,120,566,220.31
  5. Step 5: Solve for x
    x = 208,120,566,220.31/527,576.48
  6. Step 6: Final answer
    x = 394,484.16

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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.