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Finding the Fourth Proportional to 1,032.76, 1,548.06 and 546.40

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Solution

The fourth proportional to 1,032.76, 1,548.06 and 546.40 is: 819.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,032.76 : 1,548.06 = 546.40 : x
  2. Step 2: Convert to fraction form
    1,032.76/1,548.06 = 546.40/x
  3. Step 3: Cross multiply
    1,032.76x = 1,548.06 × 546.40
  4. Step 4: Simplify right side
    1,032.76x = 845,859.98
  5. Step 5: Solve for x
    x = 845,859.98/1,032.76
  6. Step 6: Final answer
    x = 819.03

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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.