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Finding the Fourth Proportional to 488,473.10, 732,709.65 and 329,040.80

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Solution

The fourth proportional to 488,473.10, 732,709.65 and 329,040.80 is: 493,561.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,473.10 : 732,709.65 = 329,040.80 : x
  2. Step 2: Convert to fraction form
    488,473.10/732,709.65 = 329,040.80/x
  3. Step 3: Cross multiply
    488,473.10x = 732,709.65 × 329,040.80
  4. Step 4: Simplify right side
    488,473.10x = 241,091,369,403.72
  5. Step 5: Solve for x
    x = 241,091,369,403.72/488,473.10
  6. Step 6: Final answer
    x = 493,561.20

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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.