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Finding the Fourth Proportional to 732, 1,095.12 and 442.08

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Solution

The fourth proportional to 732, 1,095.12 and 442.08 is: 661.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    732 : 1,095.12 = 442.08 : x
  2. Step 2: Convert to fraction form
    732/1,095.12 = 442.08/x
  3. Step 3: Cross multiply
    732x = 1,095.12 × 442.08
  4. Step 4: Simplify right side
    732x = 484,130.65
  5. Step 5: Solve for x
    x = 484,130.65/732
  6. Step 6: Final answer
    x = 661.38

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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.