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Finding the Fourth Proportional to 832.44, 1,148.58 and 483.12

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Solution

The fourth proportional to 832.44, 1,148.58 and 483.12 is: 666.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    832.44 : 1,148.58 = 483.12 : x
  2. Step 2: Convert to fraction form
    832.44/1,148.58 = 483.12/x
  3. Step 3: Cross multiply
    832.44x = 1,148.58 × 483.12
  4. Step 4: Simplify right side
    832.44x = 554,901.97
  5. Step 5: Solve for x
    x = 554,901.97/832.44
  6. Step 6: Final answer
    x = 666.60

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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.