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Finding the Fourth Proportional to 1,703.17, 2,554.90 and 470.58

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Solution

The fourth proportional to 1,703.17, 2,554.90 and 470.58 is: 705.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,703.17 : 2,554.90 = 470.58 : x
  2. Step 2: Convert to fraction form
    1,703.17/2,554.90 = 470.58/x
  3. Step 3: Cross multiply
    1,703.17x = 2,554.90 × 470.58
  4. Step 4: Simplify right side
    1,703.17x = 1,202,277.28
  5. Step 5: Solve for x
    x = 1,202,277.28/1,703.17
  6. Step 6: Final answer
    x = 705.91

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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.