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Finding the Fourth Proportional to 1,004.46, 1,386.03 and 562.29

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Solution

The fourth proportional to 1,004.46, 1,386.03 and 562.29 is: 775.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,004.46 : 1,386.03 = 562.29 : x
  2. Step 2: Convert to fraction form
    1,004.46/1,386.03 = 562.29/x
  3. Step 3: Cross multiply
    1,004.46x = 1,386.03 × 562.29
  4. Step 4: Simplify right side
    1,004.46x = 779,350.81
  5. Step 5: Solve for x
    x = 779,350.81/1,004.46
  6. Step 6: Final answer
    x = 775.89

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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.