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Finding the Fourth Proportional to 1,061.52, 1,590.48 and 695.04

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Solution

The fourth proportional to 1,061.52, 1,590.48 and 695.04 is: 1,041.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,061.52 : 1,590.48 = 695.04 : x
  2. Step 2: Convert to fraction form
    1,061.52/1,590.48 = 695.04/x
  3. Step 3: Cross multiply
    1,061.52x = 1,590.48 × 695.04
  4. Step 4: Simplify right side
    1,061.52x = 1,105,447.22
  5. Step 5: Solve for x
    x = 1,105,447.22/1,061.52
  6. Step 6: Final answer
    x = 1,041.38

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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.