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Finding the Fourth Proportional to 373.48, 557.04 and 316.08

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Solution

The fourth proportional to 373.48, 557.04 and 316.08 is: 471.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.48 : 557.04 = 316.08 : x
  2. Step 2: Convert to fraction form
    373.48/557.04 = 316.08/x
  3. Step 3: Cross multiply
    373.48x = 557.04 × 316.08
  4. Step 4: Simplify right side
    373.48x = 176,069.20
  5. Step 5: Solve for x
    x = 176,069.20/373.48
  6. Step 6: Final answer
    x = 471.43

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.