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Finding the Fourth Proportional to 944.68, 1,417.53 and 555.44

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Solution

The fourth proportional to 944.68, 1,417.53 and 555.44 is: 833.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    944.68 : 1,417.53 = 555.44 : x
  2. Step 2: Convert to fraction form
    944.68/1,417.53 = 555.44/x
  3. Step 3: Cross multiply
    944.68x = 1,417.53 × 555.44
  4. Step 4: Simplify right side
    944.68x = 787,352.86
  5. Step 5: Solve for x
    x = 787,352.86/944.68
  6. Step 6: Final answer
    x = 833.46

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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.