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Finding the Fourth Proportional to 493,709.85, 740,582.60 and 253,759.23

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Solution

The fourth proportional to 493,709.85, 740,582.60 and 253,759.23 is: 380,648.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,709.85 : 740,582.60 = 253,759.23 : x
  2. Step 2: Convert to fraction form
    493,709.85/740,582.60 = 253,759.23/x
  3. Step 3: Cross multiply
    493,709.85x = 740,582.60 × 253,759.23
  4. Step 4: Simplify right side
    493,709.85x = 187,929,669,058.60
  5. Step 5: Solve for x
    x = 187,929,669,058.60/493,709.85
  6. Step 6: Final answer
    x = 380,648.00

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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.