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Finding the Fourth Proportional to 971.74, 1,341.70 and 598.84

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Solution

The fourth proportional to 971.74, 1,341.70 and 598.84 is: 826.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    971.74 : 1,341.70 = 598.84 : x
  2. Step 2: Convert to fraction form
    971.74/1,341.70 = 598.84/x
  3. Step 3: Cross multiply
    971.74x = 1,341.70 × 598.84
  4. Step 4: Simplify right side
    971.74x = 803,463.63
  5. Step 5: Solve for x
    x = 803,463.63/971.74
  6. Step 6: Final answer
    x = 826.83

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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.