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Finding the Fourth Proportional to 832.14, 1,248.63 and 554.69

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Solution

The fourth proportional to 832.14, 1,248.63 and 554.69 is: 832.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    832.14 : 1,248.63 = 554.69 : x
  2. Step 2: Convert to fraction form
    832.14/1,248.63 = 554.69/x
  3. Step 3: Cross multiply
    832.14x = 1,248.63 × 554.69
  4. Step 4: Simplify right side
    832.14x = 692,602.57
  5. Step 5: Solve for x
    x = 692,602.57/832.14
  6. Step 6: Final answer
    x = 832.31

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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.