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Finding the Fourth Proportional to 496,428.57, 744,479.46 and 159,389.06

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Solution

The fourth proportional to 496,428.57, 744,479.46 and 159,389.06 is: 239,031.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,428.57 : 744,479.46 = 159,389.06 : x
  2. Step 2: Convert to fraction form
    496,428.57/744,479.46 = 159,389.06/x
  3. Step 3: Cross multiply
    496,428.57x = 744,479.46 × 159,389.06
  4. Step 4: Simplify right side
    496,428.57x = 118,661,877,596.31
  5. Step 5: Solve for x
    x = 118,661,877,596.31/496,428.57
  6. Step 6: Final answer
    x = 239,031.12

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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.