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Finding the Fourth Proportional to 535,624.80, 803,955.60 and 325,672.80

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Solution

The fourth proportional to 535,624.80, 803,955.60 and 325,672.80 is: 488,824.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,624.80 : 803,955.60 = 325,672.80 : x
  2. Step 2: Convert to fraction form
    535,624.80/803,955.60 = 325,672.80/x
  3. Step 3: Cross multiply
    535,624.80x = 803,955.60 × 325,672.80
  4. Step 4: Simplify right side
    535,624.80x = 261,826,471,327.68
  5. Step 5: Solve for x
    x = 261,826,471,327.68/535,624.80
  6. Step 6: Final answer
    x = 488,824.40

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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.