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Finding the Fourth Proportional to 973.35, 1,458.74 and 741.38

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Solution

The fourth proportional to 973.35, 1,458.74 and 741.38 is: 1,111.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    973.35 : 1,458.74 = 741.38 : x
  2. Step 2: Convert to fraction form
    973.35/1,458.74 = 741.38/x
  3. Step 3: Cross multiply
    973.35x = 1,458.74 × 741.38
  4. Step 4: Simplify right side
    973.35x = 1,081,475.22
  5. Step 5: Solve for x
    x = 1,081,475.22/973.35
  6. Step 6: Final answer
    x = 1,111.09

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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.