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Finding the Fourth Proportional to 328,739.28, 492,697.28 and 176,562.39

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Solution

The fourth proportional to 328,739.28, 492,697.28 and 176,562.39 is: 264,622.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,739.28 : 492,697.28 = 176,562.39 : x
  2. Step 2: Convert to fraction form
    328,739.28/492,697.28 = 176,562.39/x
  3. Step 3: Cross multiply
    328,739.28x = 492,697.28 × 176,562.39
  4. Step 4: Simplify right side
    328,739.28x = 86,991,809,303.30
  5. Step 5: Solve for x
    x = 86,991,809,303.30/328,739.28
  6. Step 6: Final answer
    x = 264,622.50

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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.