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Finding the Fourth Proportional to 1,702.84, 2,554.94 and 607.28

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Solution

The fourth proportional to 1,702.84, 2,554.94 and 607.28 is: 911.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,702.84 : 2,554.94 = 607.28 : x
  2. Step 2: Convert to fraction form
    1,702.84/2,554.94 = 607.28/x
  3. Step 3: Cross multiply
    1,702.84x = 2,554.94 × 607.28
  4. Step 4: Simplify right side
    1,702.84x = 1,551,563.96
  5. Step 5: Solve for x
    x = 1,551,563.96/1,702.84
  6. Step 6: Final answer
    x = 911.16

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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.