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Finding the Fourth Proportional to 1,172.22, 1,758.53 and 522.93

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Solution

The fourth proportional to 1,172.22, 1,758.53 and 522.93 is: 784.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172.22 : 1,758.53 = 522.93 : x
  2. Step 2: Convert to fraction form
    1,172.22/1,758.53 = 522.93/x
  3. Step 3: Cross multiply
    1,172.22x = 1,758.53 × 522.93
  4. Step 4: Simplify right side
    1,172.22x = 919,585.48
  5. Step 5: Solve for x
    x = 919,585.48/1,172.22
  6. Step 6: Final answer
    x = 784.48

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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.