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Finding the Fourth Proportional to 523,606.60, 722,348.94 and 329,896.72

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Solution

The fourth proportional to 523,606.60, 722,348.94 and 329,896.72 is: 455,113.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,606.60 : 722,348.94 = 329,896.72 : x
  2. Step 2: Convert to fraction form
    523,606.60/722,348.94 = 329,896.72/x
  3. Step 3: Cross multiply
    523,606.60x = 722,348.94 × 329,896.72
  4. Step 4: Simplify right side
    523,606.60x = 238,300,546,001.48
  5. Step 5: Solve for x
    x = 238,300,546,001.48/523,606.60
  6. Step 6: Final answer
    x = 455,113.72

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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.