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Finding the Fourth Proportional to 973.53, 1,466.12 and 853.25

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Solution

The fourth proportional to 973.53, 1,466.12 and 853.25 is: 1,284.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    973.53 : 1,466.12 = 853.25 : x
  2. Step 2: Convert to fraction form
    973.53/1,466.12 = 853.25/x
  3. Step 3: Cross multiply
    973.53x = 1,466.12 × 853.25
  4. Step 4: Simplify right side
    973.53x = 1,250,966.89
  5. Step 5: Solve for x
    x = 1,250,966.89/973.53
  6. Step 6: Final answer
    x = 1,284.98

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.