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Finding the Third Proportional to 858,455 and 1,849,763

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Solution

The third proportional to 858,455 and 1,849,763 is: 3,985,792.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,455 : 1,849,763 = 1,849,763 : x
  2. Step 2: Convert to fraction form
    858,455/1,849,763 = 1,849,763/x
  3. Step 3: Cross multiply
    858,455x = 1,849,763 × 1,849,763
  4. Step 4: Simplify right side
    858,455x = 3,421,623,156,169
  5. Step 5: Solve for x
    x = 3,421,623,156,169/858,455
  6. Step 6: Final answer
    x = 3,985,792.10

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.