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Finding the Third Proportional to 668,392 and 1,005,784

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Solution

The third proportional to 668,392 and 1,005,784 is: 1,513,485.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,392 : 1,005,784 = 1,005,784 : x
  2. Step 2: Convert to fraction form
    668,392/1,005,784 = 1,005,784/x
  3. Step 3: Cross multiply
    668,392x = 1,005,784 × 1,005,784
  4. Step 4: Simplify right side
    668,392x = 1,011,601,454,656
  5. Step 5: Solve for x
    x = 1,011,601,454,656/668,392
  6. Step 6: Final answer
    x = 1,513,485.28

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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.