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Finding the Third Proportional to 589,164 and 921,660

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Solution

The third proportional to 589,164 and 921,660 is: 1,441,800.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,164 : 921,660 = 921,660 : x
  2. Step 2: Convert to fraction form
    589,164/921,660 = 921,660/x
  3. Step 3: Cross multiply
    589,164x = 921,660 × 921,660
  4. Step 4: Simplify right side
    589,164x = 849,457,155,600
  5. Step 5: Solve for x
    x = 849,457,155,600/589,164
  6. Step 6: Final answer
    x = 1,441,800.85

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.