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Finding the Fourth Proportional to 1,050.21, 1,449.03 and 608.04

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Solution

The fourth proportional to 1,050.21, 1,449.03 and 608.04 is: 838.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,050.21 : 1,449.03 = 608.04 : x
  2. Step 2: Convert to fraction form
    1,050.21/1,449.03 = 608.04/x
  3. Step 3: Cross multiply
    1,050.21x = 1,449.03 × 608.04
  4. Step 4: Simplify right side
    1,050.21x = 881,068.20
  5. Step 5: Solve for x
    x = 881,068.20/1,050.21
  6. Step 6: Final answer
    x = 838.94

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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.