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Finding the Fourth Proportional to 1,004.49, 1,386.16 and 562.36

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Solution

The fourth proportional to 1,004.49, 1,386.16 and 562.36 is: 776.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,004.49 : 1,386.16 = 562.36 : x
  2. Step 2: Convert to fraction form
    1,004.49/1,386.16 = 562.36/x
  3. Step 3: Cross multiply
    1,004.49x = 1,386.16 × 562.36
  4. Step 4: Simplify right side
    1,004.49x = 779,520.94
  5. Step 5: Solve for x
    x = 779,520.94/1,004.49
  6. Step 6: Final answer
    x = 776.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.