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Finding the Fourth Proportional to 933.93, 1,400.49 and 471.69

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Solution

The fourth proportional to 933.93, 1,400.49 and 471.69 is: 707.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    933.93 : 1,400.49 = 471.69 : x
  2. Step 2: Convert to fraction form
    933.93/1,400.49 = 471.69/x
  3. Step 3: Cross multiply
    933.93x = 1,400.49 × 471.69
  4. Step 4: Simplify right side
    933.93x = 660,597.13
  5. Step 5: Solve for x
    x = 660,597.13/933.93
  6. Step 6: Final answer
    x = 707.33

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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.