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Finding the Third Proportional to 242,743 and 528,091

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Solution

The third proportional to 242,743 and 528,091 is: 1,148,869.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,743 : 528,091 = 528,091 : x
  2. Step 2: Convert to fraction form
    242,743/528,091 = 528,091/x
  3. Step 3: Cross multiply
    242,743x = 528,091 × 528,091
  4. Step 4: Simplify right side
    242,743x = 278,880,104,281
  5. Step 5: Solve for x
    x = 278,880,104,281/242,743
  6. Step 6: Final answer
    x = 1,148,869.81

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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.