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Finding the Fourth Proportional to 970.97, 1,341.14 and 704.99

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Solution

The fourth proportional to 970.97, 1,341.14 and 704.99 is: 973.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    970.97 : 1,341.14 = 704.99 : x
  2. Step 2: Convert to fraction form
    970.97/1,341.14 = 704.99/x
  3. Step 3: Cross multiply
    970.97x = 1,341.14 × 704.99
  4. Step 4: Simplify right side
    970.97x = 945,490.29
  5. Step 5: Solve for x
    x = 945,490.29/970.97
  6. Step 6: Final answer
    x = 973.76

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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.