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Finding the Fourth Proportional to 741.66, 1,113.54 and 468.84

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Solution

The fourth proportional to 741.66, 1,113.54 and 468.84 is: 703.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    741.66 : 1,113.54 = 468.84 : x
  2. Step 2: Convert to fraction form
    741.66/1,113.54 = 468.84/x
  3. Step 3: Cross multiply
    741.66x = 1,113.54 × 468.84
  4. Step 4: Simplify right side
    741.66x = 522,072.09
  5. Step 5: Solve for x
    x = 522,072.09/741.66
  6. Step 6: Final answer
    x = 703.92

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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.