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Finding the Fourth Proportional to 1,061.88, 1,592.93 and 292.38

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Solution

The fourth proportional to 1,061.88, 1,592.93 and 292.38 is: 438.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,061.88 : 1,592.93 = 292.38 : x
  2. Step 2: Convert to fraction form
    1,061.88/1,592.93 = 292.38/x
  3. Step 3: Cross multiply
    1,061.88x = 1,592.93 × 292.38
  4. Step 4: Simplify right side
    1,061.88x = 465,740.87
  5. Step 5: Solve for x
    x = 465,740.87/1,061.88
  6. Step 6: Final answer
    x = 438.60

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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.