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Finding the Fourth Proportional to 517,240.37, 775,859.94 and 162,281.76

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Solution

The fourth proportional to 517,240.37, 775,859.94 and 162,281.76 is: 243,422.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,240.37 : 775,859.94 = 162,281.76 : x
  2. Step 2: Convert to fraction form
    517,240.37/775,859.94 = 162,281.76/x
  3. Step 3: Cross multiply
    517,240.37x = 775,859.94 × 162,281.76
  4. Step 4: Simplify right side
    517,240.37x = 125,907,916,576.69
  5. Step 5: Solve for x
    x = 125,907,916,576.69/517,240.37
  6. Step 6: Final answer
    x = 243,422.45

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Similar ratio
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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.