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Finding the Fourth Proportional to 567,321.22, 782,901.66 and 312,672.34

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Solution

The fourth proportional to 567,321.22, 782,901.66 and 312,672.34 is: 431,486.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,321.22 : 782,901.66 = 312,672.34 : x
  2. Step 2: Convert to fraction form
    567,321.22/782,901.66 = 312,672.34/x
  3. Step 3: Cross multiply
    567,321.22x = 782,901.66 × 312,672.34
  4. Step 4: Simplify right side
    567,321.22x = 244,791,694,022.08
  5. Step 5: Solve for x
    x = 244,791,694,022.08/567,321.22
  6. Step 6: Final answer
    x = 431,486.93

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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.