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Finding the Fourth Proportional to 1,593.48, 2,390.58 and 619.59

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Solution

The fourth proportional to 1,593.48, 2,390.58 and 619.59 is: 929.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,593.48 : 2,390.58 = 619.59 : x
  2. Step 2: Convert to fraction form
    1,593.48/2,390.58 = 619.59/x
  3. Step 3: Cross multiply
    1,593.48x = 2,390.58 × 619.59
  4. Step 4: Simplify right side
    1,593.48x = 1,481,179.46
  5. Step 5: Solve for x
    x = 1,481,179.46/1,593.48
  6. Step 6: Final answer
    x = 929.52

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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.