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Finding the Fourth Proportional to 1,234.95, 1,703.75 and 1,152.33

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Solution

The fourth proportional to 1,234.95, 1,703.75 and 1,152.33 is: 1,589.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,234.95 : 1,703.75 = 1,152.33 : x
  2. Step 2: Convert to fraction form
    1,234.95/1,703.75 = 1,152.33/x
  3. Step 3: Cross multiply
    1,234.95x = 1,703.75 × 1,152.33
  4. Step 4: Simplify right side
    1,234.95x = 1,963,276.48
  5. Step 5: Solve for x
    x = 1,963,276.48/1,234.95
  6. Step 6: Final answer
    x = 1,589.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.