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Finding the Fourth Proportional to 1,004.16, 1,507.50 and 730.56

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Solution

The fourth proportional to 1,004.16, 1,507.50 and 730.56 is: 1,096.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,004.16 : 1,507.50 = 730.56 : x
  2. Step 2: Convert to fraction form
    1,004.16/1,507.50 = 730.56/x
  3. Step 3: Cross multiply
    1,004.16x = 1,507.50 × 730.56
  4. Step 4: Simplify right side
    1,004.16x = 1,101,319.20
  5. Step 5: Solve for x
    x = 1,101,319.20/1,004.16
  6. Step 6: Final answer
    x = 1,096.76

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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.