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Finding the Fourth Proportional to 933.32, 1,400.06 and 886.60

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Solution

The fourth proportional to 933.32, 1,400.06 and 886.60 is: 1,329.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    933.32 : 1,400.06 = 886.60 : x
  2. Step 2: Convert to fraction form
    933.32/1,400.06 = 886.60/x
  3. Step 3: Cross multiply
    933.32x = 1,400.06 × 886.60
  4. Step 4: Simplify right side
    933.32x = 1,241,293.20
  5. Step 5: Solve for x
    x = 1,241,293.20/933.32
  6. Step 6: Final answer
    x = 1,329.98

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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.