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Finding the Third Proportional to 365,124 and 784,572

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Solution

The third proportional to 365,124 and 784,572 is: 1,685,874.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,124 : 784,572 = 784,572 : x
  2. Step 2: Convert to fraction form
    365,124/784,572 = 784,572/x
  3. Step 3: Cross multiply
    365,124x = 784,572 × 784,572
  4. Step 4: Simplify right side
    365,124x = 615,553,223,184
  5. Step 5: Solve for x
    x = 615,553,223,184/365,124
  6. Step 6: Final answer
    x = 1,685,874.45

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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.