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Finding the Fourth Proportional to 1,573.16, 2,358.80 and 695.22

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Solution

The fourth proportional to 1,573.16, 2,358.80 and 695.22 is: 1,042.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,573.16 : 2,358.80 = 695.22 : x
  2. Step 2: Convert to fraction form
    1,573.16/2,358.80 = 695.22/x
  3. Step 3: Cross multiply
    1,573.16x = 2,358.80 × 695.22
  4. Step 4: Simplify right side
    1,573.16x = 1,639,884.94
  5. Step 5: Solve for x
    x = 1,639,884.94/1,573.16
  6. Step 6: Final answer
    x = 1,042.41

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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.