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Finding the Fourth Proportional to 1,094.29, 1,510.46 and 674.77

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Solution

The fourth proportional to 1,094.29, 1,510.46 and 674.77 is: 931.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,094.29 : 1,510.46 = 674.77 : x
  2. Step 2: Convert to fraction form
    1,094.29/1,510.46 = 674.77/x
  3. Step 3: Cross multiply
    1,094.29x = 1,510.46 × 674.77
  4. Step 4: Simplify right side
    1,094.29x = 1,019,213.50
  5. Step 5: Solve for x
    x = 1,019,213.50/1,094.29
  6. Step 6: Final answer
    x = 931.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.