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Finding the Fourth Proportional to 1,005.08, 1,506.65 and 566.28

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Solution

The fourth proportional to 1,005.08, 1,506.65 and 566.28 is: 848.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005.08 : 1,506.65 = 566.28 : x
  2. Step 2: Convert to fraction form
    1,005.08/1,506.65 = 566.28/x
  3. Step 3: Cross multiply
    1,005.08x = 1,506.65 × 566.28
  4. Step 4: Simplify right side
    1,005.08x = 853,182.93
  5. Step 5: Solve for x
    x = 853,182.93/1,005.08
  6. Step 6: Final answer
    x = 848.87

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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.