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Finding the Fourth Proportional to 1,592.48, 2,388.43 and 715.01

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Solution

The fourth proportional to 1,592.48, 2,388.43 and 715.01 is: 1,072.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,592.48 : 2,388.43 = 715.01 : x
  2. Step 2: Convert to fraction form
    1,592.48/2,388.43 = 715.01/x
  3. Step 3: Cross multiply
    1,592.48x = 2,388.43 × 715.01
  4. Step 4: Simplify right side
    1,592.48x = 1,707,755.52
  5. Step 5: Solve for x
    x = 1,707,755.52/1,592.48
  6. Step 6: Final answer
    x = 1,072.39

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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.