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Finding the Fourth Proportional to 1,045.67, 1,567.74 and 525.29

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Solution

The fourth proportional to 1,045.67, 1,567.74 and 525.29 is: 787.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,045.67 : 1,567.74 = 525.29 : x
  2. Step 2: Convert to fraction form
    1,045.67/1,567.74 = 525.29/x
  3. Step 3: Cross multiply
    1,045.67x = 1,567.74 × 525.29
  4. Step 4: Simplify right side
    1,045.67x = 823,510.31
  5. Step 5: Solve for x
    x = 823,510.31/1,045.67
  6. Step 6: Final answer
    x = 787.55

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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.