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Finding the Fourth Proportional to 1,063.38, 1,466.46 and 703.74

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Solution

The fourth proportional to 1,063.38, 1,466.46 and 703.74 is: 970.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,063.38 : 1,466.46 = 703.74 : x
  2. Step 2: Convert to fraction form
    1,063.38/1,466.46 = 703.74/x
  3. Step 3: Cross multiply
    1,063.38x = 1,466.46 × 703.74
  4. Step 4: Simplify right side
    1,063.38x = 1,032,006.56
  5. Step 5: Solve for x
    x = 1,032,006.56/1,063.38
  6. Step 6: Final answer
    x = 970.50

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Why These Related Problems?

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