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Finding the Fourth Proportional to 923.37, 1,274.36 and 530.43

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Solution

The fourth proportional to 923.37, 1,274.36 and 530.43 is: 732.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    923.37 : 1,274.36 = 530.43 : x
  2. Step 2: Convert to fraction form
    923.37/1,274.36 = 530.43/x
  3. Step 3: Cross multiply
    923.37x = 1,274.36 × 530.43
  4. Step 4: Simplify right side
    923.37x = 675,956.12
  5. Step 5: Solve for x
    x = 675,956.12/923.37
  6. Step 6: Final answer
    x = 732.05

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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.