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Finding the Fourth Proportional to 567,998.43, 783,837.75 and 313,349.59

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Solution

The fourth proportional to 567,998.43, 783,837.75 and 313,349.59 is: 432,422.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,998.43 : 783,837.75 = 313,349.59 : x
  2. Step 2: Convert to fraction form
    567,998.43/783,837.75 = 313,349.59/x
  3. Step 3: Cross multiply
    567,998.43x = 783,837.75 × 313,349.59
  4. Step 4: Simplify right side
    567,998.43x = 245,615,237,589.02
  5. Step 5: Solve for x
    x = 245,615,237,589.02/567,998.43
  6. Step 6: Final answer
    x = 432,422.39

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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.