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Finding the Fourth Proportional to 933.12, 1,287.50 and 601.02

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Solution

The fourth proportional to 933.12, 1,287.50 and 601.02 is: 829.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    933.12 : 1,287.50 = 601.02 : x
  2. Step 2: Convert to fraction form
    933.12/1,287.50 = 601.02/x
  3. Step 3: Cross multiply
    933.12x = 1,287.50 × 601.02
  4. Step 4: Simplify right side
    933.12x = 773,810.24
  5. Step 5: Solve for x
    x = 773,810.24/933.12
  6. Step 6: Final answer
    x = 829.27

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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.