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Finding the Third Proportional to 668,742 and 1,036,646

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Solution

The third proportional to 668,742 and 1,036,646 is: 1,606,949.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,742 : 1,036,646 = 1,036,646 : x
  2. Step 2: Convert to fraction form
    668,742/1,036,646 = 1,036,646/x
  3. Step 3: Cross multiply
    668,742x = 1,036,646 × 1,036,646
  4. Step 4: Simplify right side
    668,742x = 1,074,634,929,316
  5. Step 5: Solve for x
    x = 1,074,634,929,316/668,742
  6. Step 6: Final answer
    x = 1,606,949.96

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.