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Finding the Fourth Proportional to 1,050.87, 1,576 and 501.96

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Solution

The fourth proportional to 1,050.87, 1,576 and 501.96 is: 752.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,050.87 : 1,576 = 501.96 : x
  2. Step 2: Convert to fraction form
    1,050.87/1,576 = 501.96/x
  3. Step 3: Cross multiply
    1,050.87x = 1,576 × 501.96
  4. Step 4: Simplify right side
    1,050.87x = 791,088.96
  5. Step 5: Solve for x
    x = 791,088.96/1,050.87
  6. Step 6: Final answer
    x = 752.79

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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.