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Finding the Fourth Proportional to 713.64, 1,068.95 and 465.97

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Solution

The fourth proportional to 713.64, 1,068.95 and 465.97 is: 697.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    713.64 : 1,068.95 = 465.97 : x
  2. Step 2: Convert to fraction form
    713.64/1,068.95 = 465.97/x
  3. Step 3: Cross multiply
    713.64x = 1,068.95 × 465.97
  4. Step 4: Simplify right side
    713.64x = 498,097.38
  5. Step 5: Solve for x
    x = 498,097.38/713.64
  6. Step 6: Final answer
    x = 697.97

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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.