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Finding the Fourth Proportional to 476.64, 714.88 and 152

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Solution

The fourth proportional to 476.64, 714.88 and 152 is: 227.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    476.64 : 714.88 = 152 : x
  2. Step 2: Convert to fraction form
    476.64/714.88 = 152/x
  3. Step 3: Cross multiply
    476.64x = 714.88 × 152
  4. Step 4: Simplify right side
    476.64x = 108,661.76
  5. Step 5: Solve for x
    x = 108,661.76/476.64
  6. Step 6: Final answer
    x = 227.97

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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.