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Finding the Fourth Proportional to 949.16, 1,423.58 and 265

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Solution

The fourth proportional to 949.16, 1,423.58 and 265 is: 397.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    949.16 : 1,423.58 = 265 : x
  2. Step 2: Convert to fraction form
    949.16/1,423.58 = 265/x
  3. Step 3: Cross multiply
    949.16x = 1,423.58 × 265
  4. Step 4: Simplify right side
    949.16x = 377,248.70
  5. Step 5: Solve for x
    x = 377,248.70/949.16
  6. Step 6: Final answer
    x = 397.46

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.