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Finding the Fourth Proportional to 740.36, 1,111.49 and 467.60

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Solution

The fourth proportional to 740.36, 1,111.49 and 467.60 is: 701.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    740.36 : 1,111.49 = 467.60 : x
  2. Step 2: Convert to fraction form
    740.36/1,111.49 = 467.60/x
  3. Step 3: Cross multiply
    740.36x = 1,111.49 × 467.60
  4. Step 4: Simplify right side
    740.36x = 519,724.83
  5. Step 5: Solve for x
    x = 519,724.83/740.36
  6. Step 6: Final answer
    x = 701.99

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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.