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Finding the Third Proportional to 211,410 and 456,804

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Solution

The third proportional to 211,410 and 456,804 is: 987,038.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,410 : 456,804 = 456,804 : x
  2. Step 2: Convert to fraction form
    211,410/456,804 = 456,804/x
  3. Step 3: Cross multiply
    211,410x = 456,804 × 456,804
  4. Step 4: Simplify right side
    211,410x = 208,669,894,416
  5. Step 5: Solve for x
    x = 208,669,894,416/211,410
  6. Step 6: Final answer
    x = 987,038.90

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.