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Finding the Third Proportional to 1,977,386 and 4,317,220

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Solution

The third proportional to 1,977,386 and 4,317,220 is: 9,425,771.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,977,386 : 4,317,220 = 4,317,220 : x
  2. Step 2: Convert to fraction form
    1,977,386/4,317,220 = 4,317,220/x
  3. Step 3: Cross multiply
    1,977,386x = 4,317,220 × 4,317,220
  4. Step 4: Simplify right side
    1,977,386x = 18,638,388,528,400
  5. Step 5: Solve for x
    x = 18,638,388,528,400/1,977,386
  6. Step 6: Final answer
    x = 9,425,771.46

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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.