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Finding the Fourth Proportional to 923.32, 1,274.13 and 524.93

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Solution

The fourth proportional to 923.32, 1,274.13 and 524.93 is: 724.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    923.32 : 1,274.13 = 524.93 : x
  2. Step 2: Convert to fraction form
    923.32/1,274.13 = 524.93/x
  3. Step 3: Cross multiply
    923.32x = 1,274.13 × 524.93
  4. Step 4: Simplify right side
    923.32x = 668,827.75
  5. Step 5: Solve for x
    x = 668,827.75/923.32
  6. Step 6: Final answer
    x = 724.37

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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.