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Finding the Fourth Proportional to 1,022.54, 1,533.66 and 373.13

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Solution

The fourth proportional to 1,022.54, 1,533.66 and 373.13 is: 559.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,022.54 : 1,533.66 = 373.13 : x
  2. Step 2: Convert to fraction form
    1,022.54/1,533.66 = 373.13/x
  3. Step 3: Cross multiply
    1,022.54x = 1,533.66 × 373.13
  4. Step 4: Simplify right side
    1,022.54x = 572,247.59
  5. Step 5: Solve for x
    x = 572,247.59/1,022.54
  6. Step 6: Final answer
    x = 559.63

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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.