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Finding the Fourth Proportional to 332,326.20, 498,489.30 and 310,018.80

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Solution

The fourth proportional to 332,326.20, 498,489.30 and 310,018.80 is: 465,028.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,326.20 : 498,489.30 = 310,018.80 : x
  2. Step 2: Convert to fraction form
    332,326.20/498,489.30 = 310,018.80/x
  3. Step 3: Cross multiply
    332,326.20x = 498,489.30 × 310,018.80
  4. Step 4: Simplify right side
    332,326.20x = 154,541,054,598.84
  5. Step 5: Solve for x
    x = 154,541,054,598.84/332,326.20
  6. Step 6: Final answer
    x = 465,028.20

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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.