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Finding the Fourth Proportional to 713.06, 1,069.12 and 468.84

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Solution

The fourth proportional to 713.06, 1,069.12 and 468.84 is: 702.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    713.06 : 1,069.12 = 468.84 : x
  2. Step 2: Convert to fraction form
    713.06/1,069.12 = 468.84/x
  3. Step 3: Cross multiply
    713.06x = 1,069.12 × 468.84
  4. Step 4: Simplify right side
    713.06x = 501,246.81
  5. Step 5: Solve for x
    x = 501,246.81/713.06
  6. Step 6: Final answer
    x = 702.96

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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.