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Finding the Fourth Proportional to 1,397.76, 2,096.67 and 473.34

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Solution

The fourth proportional to 1,397.76, 2,096.67 and 473.34 is: 710.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397.76 : 2,096.67 = 473.34 : x
  2. Step 2: Convert to fraction form
    1,397.76/2,096.67 = 473.34/x
  3. Step 3: Cross multiply
    1,397.76x = 2,096.67 × 473.34
  4. Step 4: Simplify right side
    1,397.76x = 992,437.78
  5. Step 5: Solve for x
    x = 992,437.78/1,397.76
  6. Step 6: Final answer
    x = 710.02

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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.