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Finding the Third Proportional to 292,436,574 and 642,272,070

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Solution

The third proportional to 292,436,574 and 642,272,070 is: 1,410,608,140.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,436,574 : 642,272,070 = 642,272,070 : x
  2. Step 2: Convert to fraction form
    292,436,574/642,272,070 = 642,272,070/x
  3. Step 3: Cross multiply
    292,436,574x = 642,272,070 × 642,272,070
  4. Step 4: Simplify right side
    292,436,574x = 412,513,411,902,084,928
  5. Step 5: Solve for x
    x = 412,513,411,902,084,928/292,436,574
  6. Step 6: Final answer
    x = 1,410,608,140.63

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.