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Finding the Fourth Proportional to 1,732.69, 2,599.20 and 637.08

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Solution

The fourth proportional to 1,732.69, 2,599.20 and 637.08 is: 955.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,732.69 : 2,599.20 = 637.08 : x
  2. Step 2: Convert to fraction form
    1,732.69/2,599.20 = 637.08/x
  3. Step 3: Cross multiply
    1,732.69x = 2,599.20 × 637.08
  4. Step 4: Simplify right side
    1,732.69x = 1,655,885.34
  5. Step 5: Solve for x
    x = 1,655,885.34/1,732.69
  6. Step 6: Final answer
    x = 955.67

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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.