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Finding the Third Proportional to 660,955 and 891,786

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Solution

The third proportional to 660,955 and 891,786 is: 1,203,232.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,955 : 891,786 = 891,786 : x
  2. Step 2: Convert to fraction form
    660,955/891,786 = 891,786/x
  3. Step 3: Cross multiply
    660,955x = 891,786 × 891,786
  4. Step 4: Simplify right side
    660,955x = 795,282,269,796
  5. Step 5: Solve for x
    x = 795,282,269,796/660,955
  6. Step 6: Final answer
    x = 1,203,232.10

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.