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Finding the Fourth Proportional to 702.23, 968.93 and 407.35

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Solution

The fourth proportional to 702.23, 968.93 and 407.35 is: 562.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    702.23 : 968.93 = 407.35 : x
  2. Step 2: Convert to fraction form
    702.23/968.93 = 407.35/x
  3. Step 3: Cross multiply
    702.23x = 968.93 × 407.35
  4. Step 4: Simplify right side
    702.23x = 394,692.23
  5. Step 5: Solve for x
    x = 394,692.23/702.23
  6. Step 6: Final answer
    x = 562.05

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.