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Finding the Fourth Proportional to 1,032.80, 1,425.26 and 567.06

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Solution

The fourth proportional to 1,032.80, 1,425.26 and 567.06 is: 782.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,032.80 : 1,425.26 = 567.06 : x
  2. Step 2: Convert to fraction form
    1,032.80/1,425.26 = 567.06/x
  3. Step 3: Cross multiply
    1,032.80x = 1,425.26 × 567.06
  4. Step 4: Simplify right side
    1,032.80x = 808,207.94
  5. Step 5: Solve for x
    x = 808,207.94/1,032.80
  6. Step 6: Final answer
    x = 782.54

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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.