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Finding the Fourth Proportional to 973.48, 1,344.08 and 752.08

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Solution

The fourth proportional to 973.48, 1,344.08 and 752.08 is: 1,038.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    973.48 : 1,344.08 = 752.08 : x
  2. Step 2: Convert to fraction form
    973.48/1,344.08 = 752.08/x
  3. Step 3: Cross multiply
    973.48x = 1,344.08 × 752.08
  4. Step 4: Simplify right side
    973.48x = 1,010,855.69
  5. Step 5: Solve for x
    x = 1,010,855.69/973.48
  6. Step 6: Final answer
    x = 1,038.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.