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Finding the Fourth Proportional to 1,059.94, 1,590.95 and 574.03

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Solution

The fourth proportional to 1,059.94, 1,590.95 and 574.03 is: 861.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,059.94 : 1,590.95 = 574.03 : x
  2. Step 2: Convert to fraction form
    1,059.94/1,590.95 = 574.03/x
  3. Step 3: Cross multiply
    1,059.94x = 1,590.95 × 574.03
  4. Step 4: Simplify right side
    1,059.94x = 913,253.03
  5. Step 5: Solve for x
    x = 913,253.03/1,059.94
  6. Step 6: Final answer
    x = 861.61

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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.