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Finding the Fourth Proportional to 480,630.41, 721,103.45 and 196,559.87

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Solution

The fourth proportional to 480,630.41, 721,103.45 and 196,559.87 is: 294,904.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,630.41 : 721,103.45 = 196,559.87 : x
  2. Step 2: Convert to fraction form
    480,630.41/721,103.45 = 196,559.87/x
  3. Step 3: Cross multiply
    480,630.41x = 721,103.45 × 196,559.87
  4. Step 4: Simplify right side
    480,630.41x = 141,739,995,800.24
  5. Step 5: Solve for x
    x = 141,739,995,800.24/480,630.41
  6. Step 6: Final answer
    x = 294,904.35

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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.