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Finding the Fourth Proportional to 298,317.18, 447,475.77 and 245,615.96

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Solution

The fourth proportional to 298,317.18, 447,475.77 and 245,615.96 is: 368,423.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,317.18 : 447,475.77 = 245,615.96 : x
  2. Step 2: Convert to fraction form
    298,317.18/447,475.77 = 245,615.96/x
  3. Step 3: Cross multiply
    298,317.18x = 447,475.77 × 245,615.96
  4. Step 4: Simplify right side
    298,317.18x = 109,907,188,587.91
  5. Step 5: Solve for x
    x = 109,907,188,587.91/298,317.18
  6. Step 6: Final answer
    x = 368,423.93

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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.