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Finding the Fourth Proportional to 1,158.95, 1,738.50 and 337.28

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Solution

The fourth proportional to 1,158.95, 1,738.50 and 337.28 is: 505.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,158.95 : 1,738.50 = 337.28 : x
  2. Step 2: Convert to fraction form
    1,158.95/1,738.50 = 337.28/x
  3. Step 3: Cross multiply
    1,158.95x = 1,738.50 × 337.28
  4. Step 4: Simplify right side
    1,158.95x = 586,359.11
  5. Step 5: Solve for x
    x = 586,359.11/1,158.95
  6. Step 6: Final answer
    x = 505.94

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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.