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Finding the Fourth Proportional to 519,846.81, 779,797.76 and 145,898.97

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Solution

The fourth proportional to 519,846.81, 779,797.76 and 145,898.97 is: 218,856.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,846.81 : 779,797.76 = 145,898.97 : x
  2. Step 2: Convert to fraction form
    519,846.81/779,797.76 = 145,898.97/x
  3. Step 3: Cross multiply
    519,846.81x = 779,797.76 × 145,898.97
  4. Step 4: Simplify right side
    519,846.81x = 113,771,689,992.31
  5. Step 5: Solve for x
    x = 113,771,689,992.31/519,846.81
  6. Step 6: Final answer
    x = 218,856.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.