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Finding the Fourth Proportional to 700.96, 1,051.44 and 446.08

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Solution

The fourth proportional to 700.96, 1,051.44 and 446.08 is: 669.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    700.96 : 1,051.44 = 446.08 : x
  2. Step 2: Convert to fraction form
    700.96/1,051.44 = 446.08/x
  3. Step 3: Cross multiply
    700.96x = 1,051.44 × 446.08
  4. Step 4: Simplify right side
    700.96x = 469,026.36
  5. Step 5: Solve for x
    x = 469,026.36/700.96
  6. Step 6: Final answer
    x = 669.12

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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.