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Finding the Fourth Proportional to 941.16, 1,410.74 and 392.58

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Solution

The fourth proportional to 941.16, 1,410.74 and 392.58 is: 588.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    941.16 : 1,410.74 = 392.58 : x
  2. Step 2: Convert to fraction form
    941.16/1,410.74 = 392.58/x
  3. Step 3: Cross multiply
    941.16x = 1,410.74 × 392.58
  4. Step 4: Simplify right side
    941.16x = 553,822.24
  5. Step 5: Solve for x
    x = 553,822.24/941.16
  6. Step 6: Final answer
    x = 588.45

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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.