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Finding the Fourth Proportional to 1,047.88, 1,571.70 and 588.58

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Solution

The fourth proportional to 1,047.88, 1,571.70 and 588.58 is: 882.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,047.88 : 1,571.70 = 588.58 : x
  2. Step 2: Convert to fraction form
    1,047.88/1,571.70 = 588.58/x
  3. Step 3: Cross multiply
    1,047.88x = 1,571.70 × 588.58
  4. Step 4: Simplify right side
    1,047.88x = 925,071.19
  5. Step 5: Solve for x
    x = 925,071.19/1,047.88
  6. Step 6: Final answer
    x = 882.80

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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.