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Finding the Fourth Proportional to 567,323.22, 782,904.42 and 312,674.34

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Solution

The fourth proportional to 567,323.22, 782,904.42 and 312,674.34 is: 431,489.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,323.22 : 782,904.42 = 312,674.34 : x
  2. Step 2: Convert to fraction form
    567,323.22/782,904.42 = 312,674.34/x
  3. Step 3: Cross multiply
    567,323.22x = 782,904.42 × 312,674.34
  4. Step 4: Simplify right side
    567,323.22x = 244,794,122,806.58
  5. Step 5: Solve for x
    x = 244,794,122,806.58/567,323.22
  6. Step 6: Final answer
    x = 431,489.69

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1.5x scale

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.