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Finding the Fourth Proportional to 445,095.41, 667,641.49 and 245,310.53

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Solution

The fourth proportional to 445,095.41, 667,641.49 and 245,310.53 is: 367,964.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,095.41 : 667,641.49 = 245,310.53 : x
  2. Step 2: Convert to fraction form
    445,095.41/667,641.49 = 245,310.53/x
  3. Step 3: Cross multiply
    445,095.41x = 667,641.49 × 245,310.53
  4. Step 4: Simplify right side
    445,095.41x = 163,779,483,810.41
  5. Step 5: Solve for x
    x = 163,779,483,810.41/445,095.41
  6. Step 6: Final answer
    x = 367,964.89

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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.