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Finding the Fourth Proportional to 567,380.24, 782,975.40 and 312,755.12

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Solution

The fourth proportional to 567,380.24, 782,975.40 and 312,755.12 is: 431,596.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,380.24 : 782,975.40 = 312,755.12 : x
  2. Step 2: Convert to fraction form
    567,380.24/782,975.40 = 312,755.12/x
  3. Step 3: Cross multiply
    567,380.24x = 782,975.40 × 312,755.12
  4. Step 4: Simplify right side
    567,380.24x = 244,879,565,184.05
  5. Step 5: Solve for x
    x = 244,879,565,184.05/567,380.24
  6. Step 6: Final answer
    x = 431,596.92

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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.