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Finding the Fourth Proportional to 759,668.64, 1,138,978.08 and 332,999.52

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Solution

The fourth proportional to 759,668.64, 1,138,978.08 and 332,999.52 is: 499,269.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,668.64 : 1,138,978.08 = 332,999.52 : x
  2. Step 2: Convert to fraction form
    759,668.64/1,138,978.08 = 332,999.52/x
  3. Step 3: Cross multiply
    759,668.64x = 1,138,978.08 × 332,999.52
  4. Step 4: Simplify right side
    759,668.64x = 379,279,153,930.52
  5. Step 5: Solve for x
    x = 379,279,153,930.52/759,668.64
  6. Step 6: Final answer
    x = 499,269.20

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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.