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Finding the Fourth Proportional to 1,117.94, 1,676.90 and 468.22

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Solution

The fourth proportional to 1,117.94, 1,676.90 and 468.22 is: 702.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117.94 : 1,676.90 = 468.22 : x
  2. Step 2: Convert to fraction form
    1,117.94/1,676.90 = 468.22/x
  3. Step 3: Cross multiply
    1,117.94x = 1,676.90 × 468.22
  4. Step 4: Simplify right side
    1,117.94x = 785,158.24
  5. Step 5: Solve for x
    x = 785,158.24/1,117.94
  6. Step 6: Final answer
    x = 702.33

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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.