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Finding the Fourth Proportional to 1,048.32, 1,571.46 and 500.36

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Solution

The fourth proportional to 1,048.32, 1,571.46 and 500.36 is: 750.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,048.32 : 1,571.46 = 500.36 : x
  2. Step 2: Convert to fraction form
    1,048.32/1,571.46 = 500.36/x
  3. Step 3: Cross multiply
    1,048.32x = 1,571.46 × 500.36
  4. Step 4: Simplify right side
    1,048.32x = 786,287.87
  5. Step 5: Solve for x
    x = 786,287.87/1,048.32
  6. Step 6: Final answer
    x = 750.05

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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.