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Finding the Third Proportional to 514,820.81 and 778,885.88

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Solution

The third proportional to 514,820.81 and 778,885.88 is: 1,178,396.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,820.81 : 778,885.88 = 778,885.88 : x
  2. Step 2: Convert to fraction form
    514,820.81/778,885.88 = 778,885.88/x
  3. Step 3: Cross multiply
    514,820.81x = 778,885.88 × 778,885.88
  4. Step 4: Simplify right side
    514,820.81x = 606,663,206,274.52
  5. Step 5: Solve for x
    x = 606,663,206,274.52/514,820.81
  6. Step 6: Final answer
    x = 1,178,396.82

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.