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Finding the Third Proportional to 1,005,421.50 and 2,191,479

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Solution

The third proportional to 1,005,421.50 and 2,191,479 is: 4,776,683.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,421.50 : 2,191,479 = 2,191,479 : x
  2. Step 2: Convert to fraction form
    1,005,421.50/2,191,479 = 2,191,479/x
  3. Step 3: Cross multiply
    1,005,421.50x = 2,191,479 × 2,191,479
  4. Step 4: Simplify right side
    1,005,421.50x = 4,802,580,207,441
  5. Step 5: Solve for x
    x = 4,802,580,207,441/1,005,421.50
  6. Step 6: Final answer
    x = 4,776,683.42

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.