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Finding the Fourth Proportional to 933.40, 1,400.46 and 522.52

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Solution

The fourth proportional to 933.40, 1,400.46 and 522.52 is: 783.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    933.40 : 1,400.46 = 522.52 : x
  2. Step 2: Convert to fraction form
    933.40/1,400.46 = 522.52/x
  3. Step 3: Cross multiply
    933.40x = 1,400.46 × 522.52
  4. Step 4: Simplify right side
    933.40x = 731,768.36
  5. Step 5: Solve for x
    x = 731,768.36/933.40
  6. Step 6: Final answer
    x = 783.98

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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.