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Finding the Third Proportional to 267,222 and 392,070

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Solution

The third proportional to 267,222 and 392,070 is: 575,247.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,222 : 392,070 = 392,070 : x
  2. Step 2: Convert to fraction form
    267,222/392,070 = 392,070/x
  3. Step 3: Cross multiply
    267,222x = 392,070 × 392,070
  4. Step 4: Simplify right side
    267,222x = 153,718,884,900
  5. Step 5: Solve for x
    x = 153,718,884,900/267,222
  6. Step 6: Final answer
    x = 575,247.86

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.