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Finding the Fourth Proportional to 1,045.52, 1,567.76 and 351.95

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Solution

The fourth proportional to 1,045.52, 1,567.76 and 351.95 is: 527.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,045.52 : 1,567.76 = 351.95 : x
  2. Step 2: Convert to fraction form
    1,045.52/1,567.76 = 351.95/x
  3. Step 3: Cross multiply
    1,045.52x = 1,567.76 × 351.95
  4. Step 4: Simplify right side
    1,045.52x = 551,773.13
  5. Step 5: Solve for x
    x = 551,773.13/1,045.52
  6. Step 6: Final answer
    x = 527.75

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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.