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Finding the Fourth Proportional to 465,438.65, 696,857.25 and 251,439.90

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Solution

The fourth proportional to 465,438.65, 696,857.25 and 251,439.90 is: 376,457.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,438.65 : 696,857.25 = 251,439.90 : x
  2. Step 2: Convert to fraction form
    465,438.65/696,857.25 = 251,439.90/x
  3. Step 3: Cross multiply
    465,438.65x = 696,857.25 × 251,439.90
  4. Step 4: Simplify right side
    465,438.65x = 175,217,715,118.29
  5. Step 5: Solve for x
    x = 175,217,715,118.29/465,438.65
  6. Step 6: Final answer
    x = 376,457.16

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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.