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Finding the Fourth Proportional to 700.68, 1,051.47 and 469.83

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Solution

The fourth proportional to 700.68, 1,051.47 and 469.83 is: 705.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    700.68 : 1,051.47 = 469.83 : x
  2. Step 2: Convert to fraction form
    700.68/1,051.47 = 469.83/x
  3. Step 3: Cross multiply
    700.68x = 1,051.47 × 469.83
  4. Step 4: Simplify right side
    700.68x = 494,012.15
  5. Step 5: Solve for x
    x = 494,012.15/700.68
  6. Step 6: Final answer
    x = 705.05

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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.