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Finding the Fourth Proportional to 848.58, 1,272.06 and 360.96

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Solution

The fourth proportional to 848.58, 1,272.06 and 360.96 is: 541.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    848.58 : 1,272.06 = 360.96 : x
  2. Step 2: Convert to fraction form
    848.58/1,272.06 = 360.96/x
  3. Step 3: Cross multiply
    848.58x = 1,272.06 × 360.96
  4. Step 4: Simplify right side
    848.58x = 459,162.78
  5. Step 5: Solve for x
    x = 459,162.78/848.58
  6. Step 6: Final answer
    x = 541.10

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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.