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Finding the Third Proportional to 668,308 and 1,577,090

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Solution

The third proportional to 668,308 and 1,577,090 is: 3,721,656.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,308 : 1,577,090 = 1,577,090 : x
  2. Step 2: Convert to fraction form
    668,308/1,577,090 = 1,577,090/x
  3. Step 3: Cross multiply
    668,308x = 1,577,090 × 1,577,090
  4. Step 4: Simplify right side
    668,308x = 2,487,212,868,100
  5. Step 5: Solve for x
    x = 2,487,212,868,100/668,308
  6. Step 6: Final answer
    x = 3,721,656.58

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.