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Finding the Third Proportional to 314,572 and 679,200

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Solution

The third proportional to 314,572 and 679,200 is: 1,466,477.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,572 : 679,200 = 679,200 : x
  2. Step 2: Convert to fraction form
    314,572/679,200 = 679,200/x
  3. Step 3: Cross multiply
    314,572x = 679,200 × 679,200
  4. Step 4: Simplify right side
    314,572x = 461,312,640,000
  5. Step 5: Solve for x
    x = 461,312,640,000/314,572
  6. Step 6: Final answer
    x = 1,466,477.12

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.