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Finding the Fourth Proportional to 1,033.35, 1,548.95 and 707.55

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Solution

The fourth proportional to 1,033.35, 1,548.95 and 707.55 is: 1,060.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,033.35 : 1,548.95 = 707.55 : x
  2. Step 2: Convert to fraction form
    1,033.35/1,548.95 = 707.55/x
  3. Step 3: Cross multiply
    1,033.35x = 1,548.95 × 707.55
  4. Step 4: Simplify right side
    1,033.35x = 1,095,956.03
  5. Step 5: Solve for x
    x = 1,095,956.03/1,033.35
  6. Step 6: Final answer
    x = 1,060.59

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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.