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Finding the Fourth Proportional to 567,445.24, 783,079.82 and 312,805.54

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Solution

The fourth proportional to 567,445.24, 783,079.82 and 312,805.54 is: 431,674.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,445.24 : 783,079.82 = 312,805.54 : x
  2. Step 2: Convert to fraction form
    567,445.24/783,079.82 = 312,805.54/x
  3. Step 3: Cross multiply
    567,445.24x = 783,079.82 × 312,805.54
  4. Step 4: Simplify right side
    567,445.24x = 244,951,705,958.20
  5. Step 5: Solve for x
    x = 244,951,705,958.20/567,445.24
  6. Step 6: Final answer
    x = 431,674.62

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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.