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Finding the Fourth Proportional to 1,232, 1,848.32 and 462.72

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Solution

The fourth proportional to 1,232, 1,848.32 and 462.72 is: 694.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,232 : 1,848.32 = 462.72 : x
  2. Step 2: Convert to fraction form
    1,232/1,848.32 = 462.72/x
  3. Step 3: Cross multiply
    1,232x = 1,848.32 × 462.72
  4. Step 4: Simplify right side
    1,232x = 855,254.63
  5. Step 5: Solve for x
    x = 855,254.63/1,232
  6. Step 6: Final answer
    x = 694.20

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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.