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Finding the Fourth Proportional to 555,856.97, 766,800.88 and 351,563.83

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Solution

The fourth proportional to 555,856.97, 766,800.88 and 351,563.83 is: 484,979.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,856.97 : 766,800.88 = 351,563.83 : x
  2. Step 2: Convert to fraction form
    555,856.97/766,800.88 = 351,563.83/x
  3. Step 3: Cross multiply
    555,856.97x = 766,800.88 × 351,563.83
  4. Step 4: Simplify right side
    555,856.97x = 269,579,451,424.26
  5. Step 5: Solve for x
    x = 269,579,451,424.26/555,856.97
  6. Step 6: Final answer
    x = 484,979.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.