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Finding the Fourth Proportional to 700.48, 1,049.28 and 546.24

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Solution

The fourth proportional to 700.48, 1,049.28 and 546.24 is: 818.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    700.48 : 1,049.28 = 546.24 : x
  2. Step 2: Convert to fraction form
    700.48/1,049.28 = 546.24/x
  3. Step 3: Cross multiply
    700.48x = 1,049.28 × 546.24
  4. Step 4: Simplify right side
    700.48x = 573,158.71
  5. Step 5: Solve for x
    x = 573,158.71/700.48
  6. Step 6: Final answer
    x = 818.24

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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.