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Finding the Fourth Proportional to 562.74, 843.66 and 530.55

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Solution

The fourth proportional to 562.74, 843.66 and 530.55 is: 795.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    562.74 : 843.66 = 530.55 : x
  2. Step 2: Convert to fraction form
    562.74/843.66 = 530.55/x
  3. Step 3: Cross multiply
    562.74x = 843.66 × 530.55
  4. Step 4: Simplify right side
    562.74x = 447,596.94
  5. Step 5: Solve for x
    x = 447,596.94/562.74
  6. Step 6: Final answer
    x = 795.39

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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.