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Finding the Fourth Proportional to 973.61, 1,459.20 and 700.23

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Solution

The fourth proportional to 973.61, 1,459.20 and 700.23 is: 1,049.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    973.61 : 1,459.20 = 700.23 : x
  2. Step 2: Convert to fraction form
    973.61/1,459.20 = 700.23/x
  3. Step 3: Cross multiply
    973.61x = 1,459.20 × 700.23
  4. Step 4: Simplify right side
    973.61x = 1,021,775.62
  5. Step 5: Solve for x
    x = 1,021,775.62/973.61
  6. Step 6: Final answer
    x = 1,049.47

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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.