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Finding the Fourth Proportional to 1,117.05, 1,675.82 and 467.45

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Solution

The fourth proportional to 1,117.05, 1,675.82 and 467.45 is: 701.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117.05 : 1,675.82 = 467.45 : x
  2. Step 2: Convert to fraction form
    1,117.05/1,675.82 = 467.45/x
  3. Step 3: Cross multiply
    1,117.05x = 1,675.82 × 467.45
  4. Step 4: Simplify right side
    1,117.05x = 783,359.72
  5. Step 5: Solve for x
    x = 783,359.72/1,117.05
  6. Step 6: Final answer
    x = 701.28

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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.