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Finding the Fourth Proportional to 573,128.28, 859,094.46 and 320,037.72

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Solution

The fourth proportional to 573,128.28, 859,094.46 and 320,037.72 is: 479,722.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,128.28 : 859,094.46 = 320,037.72 : x
  2. Step 2: Convert to fraction form
    573,128.28/859,094.46 = 320,037.72/x
  3. Step 3: Cross multiply
    573,128.28x = 859,094.46 × 320,037.72
  4. Step 4: Simplify right side
    573,128.28x = 274,942,632,243.03
  5. Step 5: Solve for x
    x = 274,942,632,243.03/573,128.28
  6. Step 6: Final answer
    x = 479,722.68

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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.