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Finding the Fourth Proportional to 704.22, 1,053.45 and 589.02

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Solution

The fourth proportional to 704.22, 1,053.45 and 589.02 is: 881.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    704.22 : 1,053.45 = 589.02 : x
  2. Step 2: Convert to fraction form
    704.22/1,053.45 = 589.02/x
  3. Step 3: Cross multiply
    704.22x = 1,053.45 × 589.02
  4. Step 4: Simplify right side
    704.22x = 620,503.12
  5. Step 5: Solve for x
    x = 620,503.12/704.22
  6. Step 6: Final answer
    x = 881.12

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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.