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Finding the Fourth Proportional to 1,048.12, 1,571.61 and 500.02

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Solution

The fourth proportional to 1,048.12, 1,571.61 and 500.02 is: 749.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,048.12 : 1,571.61 = 500.02 : x
  2. Step 2: Convert to fraction form
    1,048.12/1,571.61 = 500.02/x
  3. Step 3: Cross multiply
    1,048.12x = 1,571.61 × 500.02
  4. Step 4: Simplify right side
    1,048.12x = 785,836.43
  5. Step 5: Solve for x
    x = 785,836.43/1,048.12
  6. Step 6: Final answer
    x = 749.76

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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.