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Finding the Third Proportional to 250,916.50 and 357,690.50

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Solution

The third proportional to 250,916.50 and 357,690.50 is: 509,900.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,916.50 : 357,690.50 = 357,690.50 : x
  2. Step 2: Convert to fraction form
    250,916.50/357,690.50 = 357,690.50/x
  3. Step 3: Cross multiply
    250,916.50x = 357,690.50 × 357,690.50
  4. Step 4: Simplify right side
    250,916.50x = 127,942,493,790.25
  5. Step 5: Solve for x
    x = 127,942,493,790.25/250,916.50
  6. Step 6: Final answer
    x = 509,900.68

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.