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Finding the Fourth Proportional to 1,094.67, 1,510.83 and 702

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Solution

The fourth proportional to 1,094.67, 1,510.83 and 702 is: 968.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,094.67 : 1,510.83 = 702 : x
  2. Step 2: Convert to fraction form
    1,094.67/1,510.83 = 702/x
  3. Step 3: Cross multiply
    1,094.67x = 1,510.83 × 702
  4. Step 4: Simplify right side
    1,094.67x = 1,060,602.66
  5. Step 5: Solve for x
    x = 1,060,602.66/1,094.67
  6. Step 6: Final answer
    x = 968.88

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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.