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Finding the Fourth Proportional to 1,157.98, 1,735.98 and 465.16

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Solution

The fourth proportional to 1,157.98, 1,735.98 and 465.16 is: 697.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,157.98 : 1,735.98 = 465.16 : x
  2. Step 2: Convert to fraction form
    1,157.98/1,735.98 = 465.16/x
  3. Step 3: Cross multiply
    1,157.98x = 1,735.98 × 465.16
  4. Step 4: Simplify right side
    1,157.98x = 807,508.46
  5. Step 5: Solve for x
    x = 807,508.46/1,157.98
  6. Step 6: Final answer
    x = 697.34

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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.