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Finding the Fourth Proportional to 1,732.93, 2,599.22 and 434.40

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Solution

The fourth proportional to 1,732.93, 2,599.22 and 434.40 is: 651.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,732.93 : 2,599.22 = 434.40 : x
  2. Step 2: Convert to fraction form
    1,732.93/2,599.22 = 434.40/x
  3. Step 3: Cross multiply
    1,732.93x = 2,599.22 × 434.40
  4. Step 4: Simplify right side
    1,732.93x = 1,129,101.17
  5. Step 5: Solve for x
    x = 1,129,101.17/1,732.93
  6. Step 6: Final answer
    x = 651.56

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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.