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Finding the Third Proportional to 200,177,040 and 431,069,280

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Solution

The third proportional to 200,177,040 and 431,069,280 is: 928,281,905.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,177,040 : 431,069,280 = 431,069,280 : x
  2. Step 2: Convert to fraction form
    200,177,040/431,069,280 = 431,069,280/x
  3. Step 3: Cross multiply
    200,177,040x = 431,069,280 × 431,069,280
  4. Step 4: Simplify right side
    200,177,040x = 185,820,724,159,718,400
  5. Step 5: Solve for x
    x = 185,820,724,159,718,400/200,177,040
  6. Step 6: Final answer
    x = 928,281,905.66

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.